You forgot these:

5 - Don't own a smart phone (or any kind of phone for that matter).  Buy some string at the dollar store and rifle threw someone's recycling for a couple of free tin cans.  This will allow you to construct a perfectly good makeshift phone.
6 - Don't pay for internet. The public library has free internet so you don't need it at home. 
7 - Don't go on vacation - steal a tent from a denizen of the downtown eastside.  Set the stolen tent up in your living room and pretend that you're camping (i.e. this is a super cheap staycation)
8 -  Scrimp and save.  Donate you savings to the BC Liberal party!