Power management in a computer and/or monitor allows the product to enter low power modes when not in use, saving significant energy and drastically increasing battery life in portable devices.
Keep your refrigerator door closed
Minimize the number of times you open your refrigerator. Plan accordingly so you don't have to leave the door open for prolonged periods of time. An open door allows warm, moist air in, which makes the compressor work harder. The average refrigerator is opened 33 times a day.
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