AMID-afternoon calm is slowly coming over the kampong of Banjarsari, Cilandak, South Jakarta. A teenager cycles around the neighborhood's winding roads. Two plastic bags are attached to his seat. The teenager's eyes scour every inch of the road. Each time he spots a cigarette butt or a discarded plastic candy wrapper, he quickly picks it up and stuffs it into either of the bags. This afternoon garbage sweep keeps the road in Banjarsari exceptio