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.
Insulate your water heater
If you have an old water heater, wrap it in an insulating jacket. Increased insulation slows heat loss through the walls of the water heater. Even if your water heater is in a heated part of your home, energy loss through the walls of the water heater can be significant.Insulating your water heater could save you more than $40 a year on your energy bill.
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