I have a large worktable...the kind that the sides fold down. My friends and I pin baste all of our quilts on it. We start in the middle, using clamps to hold the backing in place. Then we smooth the batting over the backing and remove one clamp at a time and re-clamp both layers. Finally, we smooth the top over the batting and again, remove one clamp at a time and clamp all three layers. We then pin. At that point, we remove the clamps, reposition the quilt, and clamp an area that is already pinned and finish the basting. Sometimes we have to move the quilt as many as four or five times. The clamps came from a hardward store!