You want to protect your furnishings. From the art on the walls to the rugs on the floor, your home contains prize possessions you've collected throughout your life. In an effort to protect those items from the color-fading effects of UV light, many homeowners choose to upgrade their windows. Today's best options, including the Weatherbeater line from Sears Home Services, feature a low-emissivity (low-E) coating that helps block harmful UV light. Eldredge describes it as "sunscreen for your house."