So far I have used sheets. However, just in reading this... I have been comtemplating useing the quilt as you go method and use a print fabric. I also thought about using prints or solids, but making the backing only as large as the main portion of the quilt top of one color and then making the same color (or different) to make "borders" on the back, same as on the front. THat way it could almost be a reversible quilt...deco on the back as well as the front in stead of just all solid or all one pattern.