Got rug corners that won't stay put; that curl and lift up? Today, you'll learn how to make corners lay flat. When corners on area rugs start to curl and lift up off the floor (as they all seem to do), pick up a peel-and-stick vinyl floor tile, a foot square or more, and with a pair of scissors or a utility knife, trim off each of the four corners to form four large triangles. Then peel off the backing and stick each one to the underside of the rug where corners are curling up. The tile will straighten the unsightly curl. And that's the On The House tip for today.