I go to a Good Will store in my area all the time. I don't find much fabric, only on occasion. The biggest haul I ever made was at St. Vincents Retail Thrift Store. I also go to the Salvation Army, especially if I need white. They must have gotten every sheet manufactured from someplace. They are crib size and youth bed size, many never used. Congratulations on your find. Would love to find your Good Will store. I don't need any more fabric, but if I see it and like it, I buy it. Compulsive, no?