Food, water and electricity will be provided so the answer isn’t just a fuck ton of food+water
I’d bring my retroid, have a fuck ton of games on it, would prolly spend a while playing xmen vs street fighter
Ebook reader for me too. It would be hard not to bring my DAP, but that only has a 13 hours battery. My old Kobo, though, has hundreds of books plus some games like solitaire, sudoku and boggle.