When I was looking for something to wash my bleeding batiks, I talked to one lady at the LQS. She recommended Shout sheets (I forgot the rest of the name) they look like dryer sheets. She also told me she did not wash her fabric pre quilting, but washed it after the the quilt was finished and threw in 2 or 3 of the Shout sheets and it worked great. I have decided to follow her lead and wash after quilting and use the SHout sheets it seems a lot less work.