OK it is official that working with cheap fabrics is awful. They stretch and distort and generally they suck. I am making two Quilts for kids. One from the nice fabric Downy sent me and one from the cheap yard sale fabric I had on hand. The nice fabric is going together nicely. The cheap VIP fabrics are fighting me every step of the way, so I developed a new philosophy:
Starch Twice....... Cut Once (when working with cheap fabric)
The other one is use the very best fabric you can afford!!!