Save money every time you flush the toilet - or in other words: "Don't flush your money away!" How? Fill a medium sized soda or juice bottle with water, and place it inside your toilet tank (not the toilet bowl - just imagine how icky THAT would be!) Place the lid back on the toilet tank.
Each time you flush, the tank will not need to fill completely up with water, as the filled bottle will be displacing some of that water. Over time, this can save you a whole lot of money. And, when shopping for a new toilet, be sure to purchase one of the new water-saving varieties that use less water to begin with.