What should I do the day before submitting my PhD thesis? I am submitting my PhD thesis in less than two days. I have checked all the tables, figures, appendices, references, and also checked spelling and any potential typos (which I believe there might be more!). I would like to ask, in addition to all of this, for those of you who have submitted PhD theses before, what would you recommend doing the day before submission? Anything that I should check again? I am planning the read through the thesis again to spot more spelling issues, I would like to hear your thoughts.

Update two days later. I successfully submitted my thesis this morning, WOHOOO! Due to COVID-19 restrictions, however, all the submissions in my university are online now (no pic of holding the printed thesis in front of the library unfortunately etc :/)
I ended up spending the last day checking the format (my ToC crashed for no reason when I was formatting yesterday!), making sure no page numbers are missing (it turned out that the page numbers are missing in some horizontal layout pages, glad that I checked!), and finally reading through the lit review chapter (which I had first drafted three years ago, though I had revised it since then) and making sure citations are correct.  Thank you everyone for your great suggestions
I would suggest reading through it one more time for pleasure. Savor the writing you labored so hard on, marvel at just how much work has gone into this, and reflect on where you are now compared to where you were when you started this labor.
To abuse the poetry of Genesis:

And the student saw every thing that they had made, and, behold, it was very good.
Thus the thesis was finished, and all the host of its data. And on the seventh day the student ended their work which they had made.