SAS is CHEAP, BUT you have to RUMMAGE through the piles and piles of remnants and bolts of fabrics....and ONLY, if you have the time. The foreign women that work there are NOT friendly at all, plus they are SUPER SLOW. It's even worse when there are one or two customers in front of you in line with PILES of fabric that need to be cut....better bring a book to read while you wait!
If you are in a hurry, you'll be better off going to JoAnn's with a 40% off coupon.
If you have time to search for something unique, then count on spending a few hours here (cups of buttons are cheap too)...I don't remember if they accept credit cards.