I always choose a fabric that will coordinate somehow with the pieced front, so that my quilts are really two sided. I also make three panels on the back, with the outside two smaller than the middle so that folding won't stress the seams. But I would love to find really nice backing fabrics in one piece. It is so hard for me to handle big pieces of fabric and have to sew long seams. I will check out some of the suggested places to find wide fabrics. Thanks for the information.