We all like banana in our cereal (yes we do, you shush!) and I used to use a knife to cut the banana and a spoon to eat the cereal with. Until one day, bing! I realized that you could cut the banana with the spoon. One less utensil to wash!
They are saying that one little change in your daily habits can really make a difference. For the earth, for our children, for the world! And this change ought to save the world 3 bazillion gallons of water! Gosh, it just feels so good to help the environment.