Window treatments can be used in a variety of ways. The most common is to stop unwanted glimpses of a room’s interior. The next most common is to control the sun coming in through the window. A third treatment can be insulated drapes to slow movement of heat in or out of your house. With those items out of the way, curtains, drapes, blinds, shades, and even curtain rods give windows a finished look that the frame alone cannot give them. Additional window treatments might include window clings, reflective crystals or stained-glass hangings, or even potted plants.