Don't let the water run when you brush your teeth or when washing your face. Most of it will be wasted. When you clean your fish tank, use the dirty water on your house plants. It's rich in nitrogen and phosphorous, which gives you a nice fertilizer while using the same water twice. If you have a swimming pool, get a cover for it.
Evaporation can make hundreds, even thousands of gallons of water disappear.
An average-size pool with average sun and wind exposure loses approximately 1,000 gallons of water per month, enough to keep a family of four in drinking water for nearly a year and a half. Mulch planting areas. Mulch covers open areas with tasteful good looks, helps keep the ground from overheating, holds moisture that otherwise would evaporate, and discourages weeds. Select the appropriate water level for the size of your load of laundry. Most washers now offer preset water levels for small, medium, and large loads.