My stash has grown considerably also because of a mismatch of backings. Since I do most of my fabric shopping online anymore it is not like I can take the top with me. When I am planning a quilt I will consider the top. Occasionally I will find a matching print and then I buy it with the fabrics for the entire quilt at the same time. If not I will most likely use a related blender as I mentioned before. Maybe I should consider buying at a brick and mortar store and take the top with me for a better finish. It could start a new way of looking at backings. I do hope this is giving you as many ideas as it is giving me.