I started keeping a journal. I think I bought it at a quilt show, small, spiral bound book. Well, it's been filled up, so now I'm thinking I need a bigger book. I like the scrap book idea. They're expandable and I didn't really need some of the pages that were in that book. I've also considered keeping a file folder for each quilt I do, snips of fabric, pattern or ideas I used, completed photo, that sort of thing.
You're right, since all the pictures are digital, they stay...or get lost...on my computer or my phone.