Set rain barrels or buckets outside your home. Position the barrels under the downspouts of your gutters to collect the most water.
Irrigate your garden or lawn using the water you have collected. This will keep you from having to turn on the sprinkler or irrigation system.
Wash your car using the yard water you have collected.
Mop your floors using the collected water. When you're done, you may use the mop water to water the flowers or garden.
Allow your children to use the water from the barrels or buckets to fill water guns or water balloons.