Before you pull out, need a ready-to-go checklist

I carry a small box of wooden cloths pins, the kind with springs. I write my check list items, one to a cloths pin, with a magic marker. Then as I set up, I clip the appropriate cloths pin to the turned down sun visor when that job is done. When the box is empty, I'm camped.
I reverse the process before driving off. Pretty hard to miss something that way.
As soon as you say to yourself, "I'll never forget that", you will.