[Slide Show: 10 Energy-Efficient Home Improvements]
5. Asleep in the bathroom: There are several other simple ways to cut down on water use in the bathroom. When you are shaving or brushing your teeth, turn the water off when you're not using it—rather than letting it run the whole time. Thornton also recommends taking a shower instead of a bath. "A bath can use up to 75 gallons of water," she says. "So showers are usually better as long as they are not really really long."
6. Half-full laundry loads: Being smart about the way you use your washing machine is another way to increase the water efficiency of your home. "Only wash full loads of clothes," Dickinson says. "Don't go running the clothes washer load for just five pieces of clothing." By consolidating smaller loads into larger ones, you can minimize the use of your washing machine, which will conserve water and save money.