Air conditioning in the warm months is also a big energy consumer. Many people find that the use of fans enable them to be comfortable with a minimum of air conditioning. Ceiling fans are inexpensive to buy and are an inexpensive way to cool your home. Buy or make an insulation jacket for the heater. Turn on the hot water faucet only when hot water is needed and turn it off immediately after use.
Many small acts save energy in the kitchen.
Use timers and thermometers to keep track of cooking time and open the oven door only when necessary. Turn off surface units or the oven promptly when food is cooked. Use portable appliances such as electric frying pans and toaster ovens since they don't take as much energy to heat. Use your microwave for cooking instead of your stove. Crock pots are also low energy users.