I have a spreadsheet where I record every quilt, its dimensions, which shows it's been in (just local non-judged shows), recipient if I've given it away, any other pertinent information. I also keep a folder with sub-folders for multiple pictures of each quilt. I'm totally digital and don't want to print out any of the information, but it's there if I want to refer back to it. (And yes, I do have regularly scheduled automatic backups.)