If you are considering purchase of any new appliance that uses water, check water requirements of various models and brands. Some use less water than others.

Check all water line connections and faucets for leaks. If you pay $1.00 per 1,000 gallons of water, you could be paying a rather hefty sum for water that simply goes down the drain because of leakage. A slow drip can waste as much as 170 gallons of water EACH DAY, or 5,000 gallons per month and can add as much as $5.00 per month to your water bill.

Learn to replace faucet washers so that drips can be corrected promptly. It is easy to do, costs very little, and can represent a substantial sum saved in plumbing and water bills.

You may have a water leakage of which you are entirely unaware - a leak between the water meter and the house, for example. It's easy to check. Turn off all faucets, indoors and out, and then check your water meter. If it continues to run, you need to check for a leak. 

Insulate all hot water pipes (especially if you are building a new house) to avoid long delays (and wasted water) while you wait for the water to "run hot." 

Be sure your hot water heater thermostat isn't set too high. Extremely hot settings waste water and energy when the water has to be cooled with cold water before you can use it. 

Use a moisture meter to determine when your houseplants need a drink. More plants die from over-watering than from being on the dry side.