I always look at my stash and see what's missing as well as see if the next quilts I want to make have enough fabric. I then feel comfortable looking for what I need as well as pick up things that just catch my eye. Sometimes I take a pattern with me and buy the fabric. Paducah and Hancock of Paducah are two very dangerous places to go because the whole place is just a blooming "buy me !" area. I have so much fun at quilt week in Paducah, love it.