Today, April 22nd is Earth Day. You can contribute to saving the earth by turning off the water while you brush your teeth. The US Department of Interior reported that we use 1 gallon of water a minute while we brush our teeth. If you brush your teeth for the recommended 2 minute period, you have used 2 gallons of clean water! If you only use water to wet your toothbrush before you brush and you use water to rinse your mouth at the end, you will help save up to 2 gallons of water.