One of the most expensive utilities in the home is the use of water. Millions of gallons of water go to waste every day in your home. This is what causes the bill to be so high, and what depletes our water supplies. There are a lot of things you can do to reduce the amount of water you use at home. One tip is that you water your lawn sparingly. Another great way to save on water usage is to clean your drive way with a broom instead of using your own water hose.