Los Angeles started a program earlier this month called "cash for grass." Residents can now get $1 for every square foot of lawn that they replace with a drought-resistant alternative. In L.A., outdoor uses account for 30 to 40 percent of a household's total water consumption, and a lot of that is used to keep large plots of grass alive. This could have a dramatic impact on water use.L.A. isn't alone. Las Vegas already has a cash for grass program, and Roseville, in northern California, just renewed theirs. It would be great to see these spread to other drought-stricken areas. And the sacrifice is pretty minimal. If you replace your lawn with some nice native plants, you can end up with a super-low-maintenance yard that actually looks like it belongs in an arid climate.Ironically, due to a legal loophole, L.A.'s other has turned out to be a little bit of a problem.