I havae been making pillowcases to store my quilts in for a long time now. Usually I have enough fabric left from the project, even if I have to piece it. By the way , the French seam looks really nice, or you can also serge the seam to finish. And another good part to this is when your quilts are stored at a glance you can tell which quilt is which , without unfolding and having to refold.