There are three things you can do to easy at home, and it could save a ton of water and every year.
I have been really inspired to save more water, because here in Southern Cali it is like a desert, and it has rained only once this whole summer. Water is important to survival out here.
1.) Make your sprinklers run in the nighttime, or early morning(set a timer)
2.) Put three drops of any color food coloring in the tank(top part) of the toilet. If any color leaks into the bowl within 20 minutes then you have a leak in your toilet and it is constantly costing you money. From there, Home Depot can help. 😉
3.) Make your load of dishes or laundry larger, so less cycles are ran. Buy energy star appliances, and run them after the sun goes down.