Wash a full load of laundry. Your washing machine uses 40 gallons of water. Run it full, or adjust the water level to the size of your load.
Don’t let the water run while you shave or brush your teeth. Turn it on only when you need it. Every minute the faucet runs, five gallons of water go down the drain.
Take a shorter shower. And switch to a low-flow shower head.
Repair leaky faucets and toilets. You can tell if the toilet leaks by putting food coloring in the tank. If color shows up in the bowl without flushing, there’s a leak.