Water Use: Appliances
Wash clothes in cold water. About 90% of the energy use in a clothes washer goes to water heating. Run your dishwasher and clothes washer only when fully loaded. Fewer loads reduce energy and water use. Use the air-dry option instead of the heat-dry. Check and clean the dishwasher drain. Make sure your dryer's outside vent is clear and clean the lint filter after every load.

Water Use: Showerheads
Reducing water use in the shower does more than save water. Reducing water use in the shower also saves energy, as showers are usually a mix of cold and hot water. Showerheads designed for efficient water use can deliver the same quality shower, but will use less water per minute.

Lighting and Electronics
Replace standard incandescent light bulbs with compact fluorescent light bulbs (CFLs) or LED bulbs and save on lighting costs. Unplug electronics, battery chargers and other equipment when not in use.

Heating, Cooling and Insulation
Reduce air conditioning costs by using fans, keeping windows and doors shut and closing shades during the day. A programmable thermostat will ensure that your heating/cooling system runs less often during the day when the house is unoccupied, and less at night after everyone has gone to bed. They will also turn your heating or cooling system back on before you wake up or come home, so you may never notice a change (except when you get lower heating or cooling bills).