Are you a water waster? It's certainly possible, but how are you to know exactly how much water you use when you do things like washing the dishes or brushing your teeth? All you can do is make a guesstimate, and that's not all that accurate.
More accurate? The Faucet Buddy. It's a faucet that counts exactly how much water you use, letting you know just how wasteful you really are. It also lets you pinpoint just how hot the water is, so you don't burn yourself sticking your hand into 120-degree water without realizing it. It's just a concept for now, but if it gets made you can look forward to keeping both the earth and your hands just a little bit safer.