Just a few small changes can add up to a lot of savings. Put a little food coloring in your toilet tank. If, without flushing, the color begins to appear in the bowl, you have a leak that should be repaired immediately. Check faucets and pipes for leaks. The smallest drip from a worn washer can waste 20 or more gallons a day.
Larger leaks can waste hundreds.
Replace your old toilet with a low-flow toilet. Ultra low-flush toilets use no more than 1.6 gallons per flush. Old toilets use three to six gallons per flush. Don't use the toilet as an ashtray or wastebasket. If you have an older toilet, place an inch of sand in a quart-size bottle, fill it with water, and place it in the tank away from the operating mechanism.