Note to rvsfan and dunster: You have solved a problem I've been pondering. I recently purchased some premium flannel (Maywood "Woolies") from my LQS for the top of a rag quilt I want to make for a DD. While the right sides are lovely, the wrong sides are all white - which could lead to rather boring frayed edges. I now know to use a flannel that has color on BOTH sides as the batting, cut the same size as the other fabrics, so it can contribute color to those edges. THANKS!