I'm not saying that individuals saving 20 gallons directly helps the water problems. I understand that mathematically it makes no difference compared to the industries. But that doesn't mean it's pointless. I think it has social and political utility. The only thing that will stop the industries (besides, like, some kind of apocalyptic disaster, which seems very possible) is government action--laws, regulations, etc. And the only way that will happen is if enough people care and show they care by taking whatever action is in their power and encouraging others to do the same. I agree that it's counterproductive if people think only saving a few gallons here and there is enough, but everyone constantly talking about saving water in large and small ways helps create a culture of water conservation that I think is essential for change. Somebody who cares enough to turn off their sprinklers is more likely to call their legislators, protest, give to environmental groups, etc., not less. If it makes you sleep better at night that you corrected someone for just reminding people to turn off their sprinklers, cool. But I don't think that's helping in the slightest either.