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It always felt like an obvious thing to do, but now we know the potential. According to state's Flex Your Power program, "if you use air conditioning, a ceiling fan will allow you to raise the thermostat setting about 4°F with no reduction in comfort. And here’s the best part: most ceiling fans use less electricity than a light bulb. Remember to turn fans off when you leave the room, since they work by creating a breeze to cool people, not rooms." This tip comes from a list of seven easy tips, including a favorite of ours that a lot of people seem to forget about: "Closing the blinds or curtains on south or west-facing walls can cut down on solar heat gain during the day."