Weekend Shopping - Fabric Remnants

Two weekends in row now, I've run to JoAnn's to pick up one little thing (thread, elastic) and found myself unable to resist the call of the remnant bin. (In case you aren't familiar, remnants are the leftover end of a bolt of fabric that's not worth putting back on the shelf, so it's bundled up and sold at a discount, usually 50% off.) I found myself sifting through the bundles searching for a little gem with enough yardage to make a little something, adding to my "to-do" list with every find. These little gems are destined to be simple blouses, a skirt and perhaps something ombre dyed (one can never have enough beige linen anyway, right?). Do you buy remnants? What do you look for?