Commodes made today use a miserly 1.6 gallons of water per flush, compared with up to 7 gallons for some older models. In an effort to conserve water, many city and municipal governments will foot the bill to get rid of those guzzling geezers. Austin, Texas, for instance, covers the cost of replacing as many as three toilets that are original to homes built before 1966. Other cities, such as Seattle, give away low-flow toilets based on family income.
Savings: $225, based on the cost and installation of one low-flow toilet.
Bonus: Lower water bills.