maybe not the cheapest, but a rock/native plant lawn is probably one of the easiest, something like this: http://img2-2.timeinc.net/toh/0708_watersmart/watersma

maybe not the cheapest, but a rock/native plant lawn is probably one of the easiest, something like this: http://img2-2.timeinc.net/toh/0708_watersmart/watersmart.jpg http://img2-2.timeinc.net/toh/0708_watersmart/watersmart.jpg .