If you spend more than five minutes in the shower you’re wasting water. If your showers are ten minutes or longer you could waste enough water to fill a backyard swimming pool while creating 2,200 extra pounds of carbon dioxide emissions just from the energy used to heat the hot water. Cut your shower time in half from 10 to 5 minutes and you’ll save more than 4,200 gallons of water a year and lower your utility bill too! (Fact source: page 16 of the book, “True Green.”)