I do not wash as well. My LQS owner does not wash hers - so I'm following her lead. There was a speaker at our Guild who said she wasn't a washer, but has switched to washing because of more fabrics bleeding now days. With the cost going up I would hope the bleeding would NOT be an issue. With that said, I have Shout Color Catchers in my cupboard that I always use after finishing a quilt - and have NOT had a problem.
Drew