Replace your old light bulbs with Energy Star qualified light bulbshttp://www.pinwheelrealestate.com/blogs/pinwheel_lady/archive/2010/08/04/replace-your-old-light-bulbs-with-energy-star-qualified-light-bulbs.aspxEnergy used for lighting and appliances can account for half of your home's total utility bill. ENERGY STAR qualified products, such as refrigerators, dishwashers, electronic equipment, light fixtures, and compact fluorescent lights (CFL’s)enCommunityServer 2.1 SP1 (Debug Build: 61019.2)