Run only full loads in the washing machine and dishwasher. (Saves 75 to 200 gallons per week)
Keep a pitcher of water in the refrigerator for drinking instead of running the tap until the water gets cold. A running faucet can waste 3 to 5 gallons of water per minute. (Saves 200 to 300 gallons per month)
Shorten your shower. Even a one or two-minute reduction can save up to 700 gallons per month.
Use low-flow showerheads or flow restrictors in regular showerheads. (Saves 500 to 800 gallons per month)
When cleaning vegetables soak them first in a basin of water rather than rinsing them under a running faucet. A shallow basin of water can remove dirt and grit better than a spray of water. The water used for cleaning can be reused for plants.
Consider installing low-flow faucet aerators on your kitchen and bathroom faucets. The aerator can be screwed into your existing faucet and can reduce flow from up to 7 gallons of water per minute to 1.5 gallons of water per minute while maintaining a good flow of water.
Don't let the water run while you brush your teeth or shave. Turn the faucet on just briefly to rinse.
Don't use your toilet as a wastebasket. Flushing tissues and bits of paper can waste many gallons of water every day.