In times of rising energy costs, trying to make your house energy-efficient is a must. One way to do this is to make drapery panels for your windows. By creating drapery panels, you help to create a cover that can insulate the window, keeping the cold air of winter out while keeping the warm air of the house in. Having drapery panels can help you to cut down on cooling costs as well, by blocking the sunlight, thus keeping the heat out and the cooler air in. One of the simplest ways to make drapery panels is to use duvet covers.