Install a Toilet Displacement Bag or Toilet Dam, both are cheap and easy to install and save at least a gallon of water per flush. This service sends a request to have your name removed from mailing lists. A notice is sent every six months to firms and compliance is voluntary. Use low-phosphate or phosphate free detergents Over half of the phosphates found in our waters are from detergents. Phosphate is not a necessary ingredient for cleaning.
Liquid detergents are usually free of phosphates.
When making a quick run to the market use your own material market bag rather than the paper or plastic bags. Take care of your water heater. Make sure you don't block of the air vents in gas heaters. Every 2 months drain off about 2 quarts of water from the valve faucet located at the bottom of the tank. This will reduce sediment and improve efficiency.