Gavin's got a new plan for us to save water, seeing as we're kind of short on the stuff lately. Our green mayor wants us to join hands with him to harvest rainwater: Build your own rainwater-harvesting barrel, or buy one for 70 bucks at Cole's Hardware. Prove you're a San Francisco resident, then take home a 60-gallon barrel that hooks up to the stormwater pipe system. Presto— free water from the sky! For watering that lawn you probably don't have. [City Insider]
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