Residential irrigation can account for up to 40% of water consumption. By collecting rainwater and storing it for future use (such as watering your garden), you'll reduce your water bill and save on your use of this resource. Rain barrels make rainwater collecting easy, and they can be created or bought inexpensively.
As other communities have done, we could find a day where a team of volunteers would be available to go around a neighborhood and help install rain barrels for local residents, and show them how to make the most of them. A small fee might cover the cost of the materials, or we might be able to get materials donated, as many industrial and food production processes can make the needed supplies available from their "waste outputs."