teslaprep
I built a resource for preparing for, buying, and taking delivery of a Model 3. It's as comprehensive as possible, consolidating every resource I could find into one page. I plan to use this as my checklist when I take delivery in (hopefully) less than a month.
It's organized a bit like an airplane pre-flight checklist, working outside-to-inside, minimizing the number of times you're jumping in and out of the car.
Is there something missing? Feel free to fork and add, or make a suggestion here and I'll be sure to add it.