I braid them, and then I put them into bags because someday I'll get around to making the braided rug I've been planning to make for the last ten years...one of my many non-quilt UFOs. Really skinny strips get braided to make little braids, then three of the little braids get braided together to make one fat braid. I also have miles and miles of ~1 1/2 inch strips of T-shirt material left over from T-shirt quilts, for which I only used the fronts. When three of those strips get braided together it makes a braid the same width as the fat braid above. Then you put them in bags and leave them in your closet.