I have been known to pick up quilting stuff at the thrift stores. I like to buy orphan sheets to use for backing or piecing. The clothes are usually too expensive to deal with. As for yard sales...that's a whole, "nuther," hobby. Before we moved, the DH and I would fill up our coffee mugs and head out on Saturday mornings, combing the neighborhoods. We've found some amazing things over the years. Now, we live in an area that's very spread out and mountainous, so there aren't many yard sales...bummer.
~ C