I prewash all except charms and precut strips. So far nothing has run.
I buy all kinds of quilt fabric from Wal Mart to expensive quilt shops and Joanns. Also mail order alot.
I also like the wrinkle look after washing the quilt. It dosnt matter if you prewash or not it still gets the wrinkle look. I guiss its because of the batting.
The lady at my Wal Mart told me her manager watchs the fabric dept. So far its sales are good so not eliminating it. AZ has a large hispanic population and they do alot of sewing or so its seems, could be sweat shop labor. They have busted alot of drop houses here where they find sometime 30 or more illegals kept prisoner. Its a bad situation here and it needs to be stopped.