I am lucky to have a third of our finished basement for my quilt studio. It is lined with white Billy bookcases from Ikea...they are floor to ceiling. My fabrics are sorted in colors. I started with my whites, tans, beiges, browns, then light blues to dark, light pinks to dark reds, etc., etc.
Of course, when sun is bright, my windows are blocked to prevent fading. My fat quarters are stored on a shelf designed to hold cd's....perfect size....again sorted in colors lights to darks. Scraps go into a large canvas bin for my crazy quilts. Friends like to come by to "shop" my stash. I've greatly downsized over the past few months as more friends have increased their stash from mine!