Periodically inspect your dryer vent to ensure it is not blocked. This will save energy and may prevent a fire. Manufacturers recommend using rigid venting material – not plastic vents that may collapse and cause blockages.
Check your water heater thermostat. Many manufacturers set thermostats to 140 degrees, although most households only need a setting of 120 degrees. Each 10 degree drop in water temperature can save you between 3 and 5 percent in energy costs.