I think there's going to be hundreds of different ways to save water! There are people actually setting up rain barrel collection sites that take the whole crawl space under their houses. I saw a television show a couple years ago on a man in Arizona who set up a huge water collection under his home and never has to go onto his community grid to water his garden. You can use old garbage cans too.
Rain barrels that are kept outside of your home don't have to be a eye-sore!
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