Gavin wants your fat. According to Renewable Energy Access, yesterday our dear Mayor implemented a new program that will collect fats, oil, and grease from the city restaurants free of charge.Why? So that they can be to turn into biofuel to power city-owned vehicles. The program is called SFGreasecycle. Ew. But: awesome. Said fat and oil, when poured down the drain, "solidifies into thick layers inside drainpipes and sewer pipes, constricting water flow the......