Rethink your heating and cooling habits. Try to allow your body to acclimate to the changing seasons instead of using your heater and air conditioner to keep the temperature steady all year long. Blasting the heat and air is a major drain on energy, so break out your hand fans and warm sweaters to help you adjust to weather changes rather than relying on your thermostat.
When you're at work or away on a weekend trip, make sure to adjust your thermostat so that it's not pumping in cool or hot air the entire time you're away.[6]