I honestly don't think Walmart fabric is all that bad, but it's a personal taste thing and I agree with ghostrider up there that you'll discover best what you prefer to use by trying different brands out for yourself. The only fabric I really refuse to use is some of the buck a yard stuff at Walmart, and the $2-$3 stuff at Jo Ann Fabrics...but not all of it. Some of it frays horribly and is almost see through...and I have had some bad experiences with imperfections coming right off the bolt. I don't know if it makes a difference but I try to use similar quality together, but not always. If I'm using uber cheapo thin stuff I'll keep it with other uber cheapo thin stuff. LOL* Most of the time though I just stay away from that stuff altogether, it's not that pleasant in my opinion to sew with. But sometimes I just don't have money to purchase quilt shop fabric so don't be afraid to take advantage of good chain store sales. You can often get older collections of some of the bigger names in designer fabrics there too.