Use mulch strips to contain watering areas. Consider laying down an eight-inch buffer of mulch adjacent to sidewalks and curbs to reduce runoff and water waste. Large drops mean less waste. Use sprinklers that emit large droplets rather than a fine mist to reduce losses through evaporation. Deep soak each time you water.
Many people water lightly and frequently, causing a shallow root system.
Watering deeply and infrequently creates a healthy root system that is better equipped to withstand heat and drought. Water without waste. Stop watering whenever runoff occurs, especially on slopes or on compacted, dry soils. That may mean turning the water on and off in cycles to allow moisture to soak into the ground, but it beats watching the water flow down the street. The same is true when puddling occurs.