I have sketchbooks in a safety deposit box in a bank in my community. Okay, that's a little disclosure of bizzare item # 23 from me. It is my laboratory, those books. They keep odds and ends of papers, tickets, string...flotsam. I happen to like keeping them in the pages as I found them, when I found them. Journal and drawing entries are made as you'd expect. Some of those scribbles wind up in the printed books.
I just found this site while trolling (Boing Boing>March Design). I just skimmed a few pages. I will delve into it at snack times (which can be often). I always like finding people who are as hooked on making sketchbooks as I am and, if you're not, turning you into one of us. Although, I wish I traveled as much as this guy, Enrique Flores (man, those entries are so amazing and relaxed!). The inside of studios may not be as exotic. Hmmm...now that I write this, that may not be so cracked an idea.