Tiffany, I'm sure the time will come when you need to match up a particular fabric for a sensational quilt idea you've had and then you will put a swatch or swatches in your photo book.
The photo book's a neat idea. My purse is a fanny pack because I need my hands free and, to avoid an old whiplash injury pain, can't wear a shoulder strap bag. I barely have room in my fanny pack to cram an envelope of swatches.