Lampshades
Running over your lampshades with a duster once in a blue moon might not be enough to grab grime that has sunk into the surface. Try rolling it with a sticky lint roller, or vacuum it with an upholstery brush attachment. If your fabric lampshade is stained, soak the lampshade in warm soapy water with laundry or dishwashing detergent, then scrub it clean, rinse and dry.