There are plenty of things you can do including the following:
• Install a programmable thermostat so you don’t waste air conditioning or heat while you’re not at home.
• Switch your incandescent light bulbs to more energy efficient light bulbs like compact fluorescents (CFLs) or LEDs.
• Install ceiling fans and, when you can, use them instead of your air conditioning to cool you down.
• Unplug any appliance that you’re not using. While it may not be turned on, it will still use power from your electrical outlet.
• Make sure your windows and doors are sealed properly so that they don’t let air in and make your HVAC system work harder.