Locate your dryer in a heated part of your home to keep it from having to work harder to produce heat. Your dryer will run most efficiently if you dry clothes that are of the same thickness. Each tip below, by itself, will not save you a lot. But together they can add up to substantial savings. Use cold water when running your garbage disposal.
Cold water saves energy and solidifies grease, which can be ground up and flushed away.
Wait until you have a full load before running the dishwasher. When time permits, open the door of your dishwasher and let the dishes dry naturally. A lot of the electricity used by a dishwasher is for the heating element for drying. Do your ironing all at once. It takes more electricity to heat the iron initially than to maintain the desired temperature.