I love the idea of the sheets from WalMart for saving mula. I do wonder though do they pile (little balls on them) after they are washed? Or is that something from sheets of long ago? Also, why is it that sheets are harder to quilt? Isn't a batik a tight weave because of the process of how they make the batik? Wouldn't that be about the same as a sheet? I'm just asking because these are curiosity questions I've wondered about. Thanks.