When cleaning your light fixtures, if possible, remove the glass part and clean it separately. Fill up the sink with warm, soapy water and allow the glass to sit for several minutes. then wipe the glass with a sponge and seat upon a towel to dry. You may want to also polish the glass off witha soft cloth to avoid residue. to clean light bulbs, make sure the light is turned off or unplugged until cool. Then wipe down with a soft cloth. a simple duster may suffice, but only if the lights were recently cleaned. If there is layers of dust use a slightly dampened one.