I do the same as Marcia with the taping onto the floor. Then I lay my batting then the top flattening both. Then I pull the batting and top from one end back to the middle. I spray the spray basting on this half of the backing then lay the batting and top back down and flatten. Then do the same for the other end. The pull just the top back halfway and spray the batting to the halfway mark of the quilt and lay the top on and flatten. Then do the same from the other end.