You keep the sun out.  If you have a very sunny window, put something thick on it.. . Try not to use the oven.  that is 220.  Fruit makes a good dessert and is good for you.  If it is gas, the heat makes the ac run more.. . Wash clothes in cold water and wash only when you have a full load.  Electric hot water runs on 220.  Your clothes get just as clean and it is easier on the clothes.  Will not heat the laundry more.. . Same with dryer.  220. . Set fridge and hot water on save energy.. . Use fan to draw air through the house.. Let fan blow air in the bedroom at night.. . I started hanging jeans out side.  Then put them in the dryer to kill anything that might have gotten in them and to derinkel for 10 minutes.  Saves 2 hours drying.. . Drying rugs and the dog bed and things out side saves 2 more hours of drying.  The sun makes them smell better.. . When not using a light or tv, turn off.. . The government said the curly light bulbs are cheaper to use.. . Take quick warm showers.. . Run the dishwasher only when full or wash mostly by hand.