These systems will also cut down evaporation. Keep lawn free of weeds - Weeds are water thieves and will rob your plants of water and nutrients. Spot spray or remove weeds as they appear. Reduce traffic on stressed turf areas if possible. Fertilizer applications require additional water.
Excess fertilizer stimulates top growth, often to the detriment of the root system.
Learn to accept turf grasses with low water needs. Mow higher than normal - Longer leaf surfaces promote deeper rooting and shade the root zone. Return mulched clippings to the lawn. Use a broom to clean the driveway and sidewalk - Sweeping the driveway and sidewalk will get them clean enough without wasting gallons of water. Turn on the water again for a final rinse.