Great find in the GW you had! Trouble with a lot of thrift-type stores is that it is easy for them to think "if it ain't already something, then we don't sell it." I have watched as bunches of fabric is just tossed out -- what a waste. It is always in your best interest to visit the store manager and suggest they carry donated fabrics, then tell them why so many crafters look for it. Also tell them if they are in looking for fabrics, they are also more prone to buy other things. Impulse buying is what makes them good money.
Terry - in Northern Delaware.