Take a shower instead of a bath. You'll heat about half as much water.

Turn off the faucet while you shave. You'll save on water-heating. Keep it off when you brush your teeth too, and you can save thousands of gallons of water a year.

Replace your old, noisy ventilation fan with a quiet, low-wattage, ENERGY STAR labeled fan. It is very likely that if you can hear your fan throughout the house, or even in nearby rooms, it's an energy hog.

Find out more about ventilation