user-1: There are probably a lot of ways to prepare for death. I myself can't come up with more than: 

Reflecting on ones own death on a daily basis;
Don't buy stuff that's useless so that it's easier for loved ones to clean up after you.

Are there more things one could do? And what do you yourself to prepare?
Looking for inspiration. 
So, I'm not so much interested in the process of dying, but what you do on a daily basis in the years and decades before.

user254: From page 82 of this Vinaya commentary,
The Buddhist Monastic Code I: The Patimokkha Training Rules Translated and Explained, by Thanissaro Bhikkhu:

Thus, the Commentary notes, a bhikkhu talking to a dying patient should [... focus on ...]  how to inspire the patient with the following thoughts:

“The attainment of the paths and fruitions is not out of the ordinary for a
    virtuous person. So, having formed no attachment for such things as your
    dwelling, and establishing mindfulness in the Buddha, Dhamma, Sangha, or the
    body, you should be heedful in your attention.”

The Vinita-vatthu to Pr 4
  contains a number of stories in which bhikkhus comfort a dying bhikkhu by
  asking him to reflect on what he has attained through the practice, which was
  apparently a common way of encouraging a dying bhikkhu to focus his
  thoughts on the best object possible. The suttas also contain advice on how to
  encourage patients facing death. See, for example,
  MN 143,
  SN 36.7, and
  AN 6.16.
  In all of these cases, the advice is aimed [...] at inspiring
  calm and insight.

Some/various schools of Buddhism have a detailed doctrine on this subject e.g. Tibetan Nyingma tradition referenced in this answer to How to die professionally?
Other related topics may include Experiencing physical pain and Last thought before death?
One more reference -- a Zen story: Three Days More
I think a lot of people will say that the best preparation is the "enter the stream" (and so also abandon identity-view).

user-1: If the previous post doesn't answer your question...here's something, I don't do but know people do.
Read the 'Tibetan book of the Dead', it will teach you everything that's going to happen after you die and before you will be reborn.  In the bardo. You do the pratice to prepare for whats to come.
Also you can learn, how to attain 'rainbow body' when you die. Its an esoteric Tibetan practise I read in Jetsunma Tenzing Plamos book. Though nobody but the Lamas can teach you how to do that. This will surely prepare you for death.

user12022: There is no "you" or "I" which dies. Birth, life, and death all happen, but rather than have the experience as it truly is, we remain in a tiny box sometimes called "the ego" which has a hard time seeing anything except as it pertains to itself. This is only a delusion. One prepares for death the same way one prepares for life, by finding liberation from this small limited ego-self. In fact, life itself is the best preparation for death, because of the natural lessons that arise when one awakens to them.
No Death, No Fear -- Comforting Wisdom for Life by Thich Nhat Hanh.

user-1: To prepare for death I imagine that when I will be dying I won't die like I have died all my past lives and I won't die in suffering. 
I imagine that I have attained Nibbana and I will be dying a conscious and aware death. I will know that death is coming and I will know that death is happening. 
I imagine I won't have to come back. The holy life would have been lived. 

user13888: Focusing more on your second point rather than the spiritual aspect of getting to grips with the prospect of your own death:

[making it] easier for loved ones to clean up after you.

There are many things you can do to help your loved ones in such a situation. Generally, the hardest thing to do for people in mourning is to take decisions. So, in addition to making it easier on them by not having much clutter, make sure that there's a clear plan. The plan may vary based on your culture and that of your loved ones, it may also vary based on your local laws because not all countries handle an individual's death the same way. 
For example, a plan may include 

a written will (make sure it is clear, with no room for interpretation). Depending on your local laws you may want to consult a lawyer or other professional.
Funeral arrangements: a clear outline of your choice regarding cremation/embalming/burial, whether or not you want a wake, choose your clothes and casket etc.

Basically go through all the decisions that need to be made after one's death and try to make as many as you can yourself before you pass. When my uncle passed away (car accident), my grandparents found out just how much effort was involved in planning the procedures. They planned everything for their own funerals so that we wouldn't have to go through it when they passed - they even paid for it in advance so that there would be no financial stress in the mourning period. It made it much easier for the whole family to go along with the plan than to come up with one when the time came.
In addition to making it easier on your loved ones, having a plan ensures that you get what you want.

user111: You wouldn't ask this question unless there is some fear or worry of dying. Otherwise you might as well ask "how to prepare for the setting of the sun?".
So you need to work on that fear. But, what causes this fear?

Tanhaya japati soko
tanhaya jayati bhayam
tanhaya vippamuttassa
natthi soko kuto bhayam.
Craving begets sorrow, craving begets fear. For him who is free from
craving there is no sorrow; how can there be fear for him?
Dhammapada Verse 216

Hence you need to work on eliminating craving. Enlightened beings do not have such questions regarding death as they do not fear or worry.

user-1: There is some excerpt authored by Dalai Lama if you are not negative towards Tibetan Buddhism and the Great Vehicle in general. This is how he approaches preparations for death, with some steps of advice: Preparing to Die.
Generally speaking, this topic of preparations is covered in depth by Tibetans, this is why they oftentimes wear skull beads, to be constantly reminded of death. If you discern a couple of contextual (Vajrayanic) notions you might find it valuable.
Summary of advice from Advice on Dying: And Living a Better Life by Dalai Lama:


If you cultivate a sense of the uncertainty of the time of death, you will make better use of your time.
To prevent procrastination with regard to spiritual practice, take care not to come under the influence of the illusion of permanence.
Realize that no matter how wonderful a situation may be, its nature is such that it must end.
Do not think that there will be time later.
Be frank about facing your own death. Skillfully encourage others to be frank about their deaths. Do not deceive each other with
  compliments when the time of death is near. Honesty will foster
  courage and joy.



user43: I prepare for death by watching clouds.
Appearances of entities arise when certain elements come together, and then morph beyond recognition as elements drift apart.
Death is all around us at all times. Everything is changing, always. I prepare for death by letting go of fixed ideas about who I am. Every moment is a different configuration and there's no me in that.
There is no birth and death, only continuous transformation. I learned this by watching the clouds.

-1: <p>There are probably a lot of ways to prepare for death. I myself can't come up with more than: </p>

<ul>
<li>Reflecting on ones own death on a daily basis;</li>
<li>Don't buy stuff that's useless so that it's easier for loved ones to clean up after you.</li>
</ul>

<p>Are there more things one could do? And what do you yourself to prepare?
Looking for inspiration. </p>

<p>So, I'm not so much interested in the process of dying, but what you do on a daily basis in the years and decades before.</p>
 254: <p>From page 82 of this Vinaya commentary,
<a href="http://www.accesstoinsight.org/lib/authors/thanissaro/bmc1.pdf" rel="nofollow noreferrer">The Buddhist Monastic Code I: The Patimokkha Training Rules Translated and Explained, by Thanissaro Bhikkhu</a>:</p>

<blockquote>
  <p>Thus, the Commentary notes, a bhikkhu talking to a dying patient should [... focus on ...]  how to inspire the patient with the following thoughts:</p>
  
  <blockquote>
    <p>“The attainment of the paths and fruitions is not out of the ordinary for a
    virtuous person. So, having formed no attachment for such things as your
    dwelling, and establishing mindfulness in the Buddha, Dhamma, Sangha, or the
    body, you should be heedful in your attention.”</p>
  </blockquote>
  
  <p>The Vinita-vatthu to Pr 4
  contains a number of stories in which bhikkhus comfort a dying bhikkhu by
  asking him to reflect on what he has attained through the practice, which was
  apparently a common way of encouraging a dying bhikkhu to focus his
  thoughts on the best object possible. The suttas also contain advice on how to
  encourage patients facing death. See, for example,
  <a href="https://suttacentral.net/mn143/en/sujato" rel="nofollow noreferrer">MN 143</a>,
  <a href="https://suttacentral.net/sn36.7/en/sujato" rel="nofollow noreferrer">SN 36.7</a>, and
  <a href="https://suttacentral.net/an6.16/en/sujato" rel="nofollow noreferrer">AN 6.16</a>.
  In all of these cases, the advice is aimed [...] at inspiring
  calm and insight.</p>
</blockquote>

<p>Some/various schools of Buddhism have a detailed doctrine on this subject e.g. Tibetan Nyingma tradition referenced in this answer to <a href="https://buddhism.stackexchange.com/a/26285/254">How to die professionally?</a></p>

<p>Other related topics may include <a href="https://buddhism.stackexchange.com/q/5142/254">Experiencing physical pain</a> and <a href="https://buddhism.stackexchange.com/q/10321/254">Last thought before death?</a></p>

<p>One more reference -- a Zen story: <a href="http://www.ashidakim.com/zenkoans/25threedaysmore.html" rel="nofollow noreferrer">Three Days More</a></p>

<p>I think a lot of people will say that the best preparation is the "enter the stream" (and so also abandon identity-view).</p>
 -1: <p>If the previous post doesn't answer your question...here's something, I don't do but know people do.</p>

<p>Read the 'Tibetan book of the Dead', it will teach you everything that's going to happen after you die and before you will be reborn.  In the bardo. You do the pratice to prepare for whats to come.</p>

<p>Also you can learn, how to attain 'rainbow body' when you die. Its an esoteric Tibetan practise I read in Jetsunma Tenzing Plamos book. Though nobody but the Lamas can teach you how to do that. This will surely prepare you for death.</p>
 12022: <p>There is no "you" or "I" which dies. Birth, life, and death all happen, but rather than have the experience as it truly is, we remain in a tiny box sometimes called "the ego" which has a hard time seeing anything except as it pertains to itself. This is only a delusion. One prepares for death the same way one prepares for life, by finding liberation from this small limited ego-self. In fact, life itself is the best preparation for death, because of the natural lessons that arise when one awakens to them.</p>

<p><a href="https://terebess.hu/zen/mesterek/Thich%20Nhat%20Hanh%20-%20No%20Death,%20No%20Fear.pdf" rel="nofollow noreferrer">No Death, No Fear -- Comforting Wisdom for Life</a> by Thich Nhat Hanh.</p>
 -1: <p>To prepare for death I imagine that when I will be dying I won't die like I have died all my past lives and I won't die in suffering. </p>

<p>I imagine that I have attained Nibbana and I will be dying a conscious and aware death. I will know that death is coming and I will know that death is happening. </p>

<p>I imagine I won't have to come back. The holy life would have been lived. </p>
 13888: <p>Focusing more on your second point rather than the spiritual aspect of getting to grips with the prospect of your own death:</p>

<blockquote>
  <p>[making it] easier for loved ones to clean up after you.</p>
</blockquote>

<p>There are many things you can do to help your loved ones in such a situation. Generally, the hardest thing to do for people in mourning is to take decisions. So, in addition to making it easier on them by not having much clutter, make sure that there's a clear plan. The plan may vary based on your culture and that of your loved ones, it may also vary based on your local laws because not all countries handle an individual's death the same way. </p>

<p>For example, a plan may include </p>

<ul>
<li><p>a written will (make sure it is clear, with no room for interpretation). Depending on your local laws you may want to consult a lawyer or other professional.</p></li>
<li><p>Funeral arrangements: a clear outline of your choice regarding cremation/embalming/burial, whether or not you want a wake, choose your clothes and casket etc.</p></li>
</ul>

<p>Basically go through all the decisions that need to be made after one's death and try to make as many as you can yourself before you pass. When my uncle passed away (car accident), my grandparents found out just how much effort was involved in planning the procedures. They planned everything for their own funerals so that we wouldn't have to go through it when they passed - they even paid for it in advance so that there would be no financial stress in the mourning period. It made it much easier for the whole family to go along with the plan than to come up with one when the time came.</p>

<p>In addition to making it easier on your loved ones, having a plan ensures that you get what you want.</p>
 111: <p>You wouldn't ask this question unless there is some fear or worry of dying. Otherwise you might as well ask &quot;how to prepare for the setting of the sun?&quot;.</p>
<p>So you need to work on that fear. But, what causes this fear?</p>
<blockquote>
<p><em>Tanhaya japati soko<br />
tanhaya jayati bhayam<br />
tanhaya vippamuttassa<br />
natthi soko kuto bhayam.</em></p>
<p>Craving begets sorrow, <strong>craving begets fear</strong>. For him who is free from
craving there is no sorrow; how can there be fear for him?</p>
<p><a href="https://www.tipitaka.net/tipitaka/dhp/verseload.php?verse=216" rel="nofollow noreferrer">Dhammapada Verse 216</a></p>
</blockquote>
<p>Hence you need to work on eliminating craving. Enlightened beings do not have such questions regarding death as they do not fear or worry.</p>
 -1: <p>There is some excerpt authored by Dalai Lama if you are not negative towards Tibetan Buddhism and the Great Vehicle in general. This is how he approaches preparations for death, with some steps of advice: <a href="http://www.katinkahesselink.net/tibet/dalai5.html" rel="nofollow noreferrer">Preparing to Die</a>.</p>

<p>Generally speaking, this topic of preparations is covered in depth by Tibetans, this is why they oftentimes wear skull beads, to be constantly reminded of death. If you discern a couple of contextual (Vajrayanic) notions you might find it valuable.</p>

<p>Summary of advice from <em>Advice on Dying: And Living a Better Life</em> by Dalai Lama:</p>

<blockquote>
  <ol>
  <li>If you cultivate a sense of the uncertainty of the time of death, you will make better use of your time.</li>
  <li>To prevent procrastination with regard to spiritual practice, take care not to come under the influence of the illusion of permanence.</li>
  <li>Realize that no matter how wonderful a situation may be, its nature is such that it must end.</li>
  <li>Do not think that there will be time later.</li>
  <li>Be frank about facing your own death. Skillfully encourage others to be frank about their deaths. Do not deceive each other with
  compliments when the time of death is near. Honesty will foster
  courage and joy.</li>
  </ol>
</blockquote>
 43: <p>I prepare for death by watching clouds.</p>

<p>Appearances of entities arise when certain elements come together, and then morph beyond recognition as elements drift apart.</p>

<p>Death is all around us at all times. Everything is changing, always. I prepare for death by letting go of fixed ideas about who I am. Every moment is a different configuration and there's no me in that.</p>

<p>There is no birth and death, only continuous transformation. I learned this by watching the clouds.</p>
