Hang a valance with rubber bands around the valance at even intervals. This creates a no-sew window treatment with a short curtain that doesn't have a curtain rod pocket or rings. Stretch wide rubber bands over the valance or a wide strip of fabric, tucking the valance hem behind the spring rod.
Put a rubber band around the valance every 6 to 10 inches to create puffs of fabric, like a puffed sleeve effect. Hold the curtain carefully so it doesn't slip off the tension rod. Use a stepladder, if needed, to reach the top of the window.
Compress the spring rod, and position it at the top of the window inside the frame. Adjust the puffs to make them even.
Hang two rubber bands from the top of a window frame, with one at each side and 2 to 3 inches from the edges of the window glass. Covering the window completely, from the top of the window frame, helps to save energy by reducing hot or cold air from coming in at the top of the window.
Insert a clear pushpin in the top of the window frame, or screw a decorative hook or a screw-in knob, such as a dresser pull, into the wall, 1 inch above the top of the frame. Hang the rubber band over the hardware.
Slip the end of a scarf or sheer curtain panel through each rubber band. Adjust the fabric to create a swag effect; this window treatment hangs down in a smile shape, with the ends of the fabric hanging down to frame the top of the window. Alternatively, use a long curtain panel to frame the entire window.