The cataloging was the meaningful part. I've been worried about how I was going to keep track of the fabric care info after a garment was finished. Enter spiral-bound index cards! When I first saw these, I thought they were so cool. I'm such a nerd. Hey, it's been about 20 years since I used an index card. I was impressed by the improvement.
Each side of the cards should have a swatch and some key info. When adding swatches, make sure you alternate them so that the book won't lopsided. My first swatch was a pretty 2x2 square. It was cut from scrap fabric. I was a little stingy when cutting swatches from my real fabric.
I used Deepika's handy form as a guide to know what info needed to be on the card. I also wrote down any patterns I was considering for the fabric, if the fabric was pre-washed and any notions I needed to complete a particular project. I also noted if the fabric was a favorite. Things like fiber content I wrote in ink. If I needed thread, I wrote that in pencil.
This works for me because my stash has fewer than 100 pieces. If your collection is bigger, you'll need a binder for your cards or you can make multiple books. A great tip on Pattern Review suggested using a CD case. I can't seem to find the link to that post again.