I find the folded ruler method helps not only with storing the fabric (making my stash look neater) but with putting together fabrics. Since the folded pieces are the same size,
it makes it easier to see how fabrics go together when pulling options- like a mini bolt. As far as keeping track of yardage, I keep yardage samples by color of 1/2 or more in clear baseball card sleeves. I cut the sample from a corner, staple it to an index card cut to size, and write on the back the yardage, name of print, and manufacturer. I got this idea from a blog- can't remember which one. Then when I got "fabric shopping" I take the sheets I need and make additional selections.