I recently made a quilt for a baby and decided that because it was so large (will fit a twin bed) that I would do the back in 9 patch. That way it could be used into her grade school years. I was stumped as to how to quilt it so that the back would look decent.....
One of our peers here gave me a great idea regarding quilting it. Do the two sides separately; thin batting backed with bridal toile and then sandwich the front and back together after they are quilted separately.
I haven't done it yet, but I'm ready to go.