I take pictures of all my quilts and keep them on the computer (with a backup). I keep a spreadsheet listing the quilts. But I've only been quilting a few years, and already I find that I have forgotten about some of the quilts. Even though you didn't start taking pictures or keeping a journal when you started quilting, it's not too late to start now. And you might try to backtrack and get pictures of some that you gave to other people too. Ask them to send you pictures, or take some when you go to visit. It will be fun to get to know those old quilts again!