In areas where there are severe droughts such as Australia. They have a toilet which is truely a water saver. This toilet has a faucet on top of the tank! After flushing the toilet, water from the faucet begins to pour filling up the toilet tank, while you are washing your hands. The water flows from the faucet into a recessed drain, to fill the tank. This saves a whole lot of water from really going down the drain. This is called a Caroma's profile toilet.
For any home which is trying to be more green, this would be a great item to look into.

Every little step we take towards going green is one step closer we are to helping the planet for our future generations.
Of course not everyone can afford to just go out and replace their toilet, so an idea that you can do to help save water and lessen the cost of your bill, is to fill a two liter bottle with water and place it into your toilets tank. this will keep you from flushing so much water down the drain.