One way to go green without costly changes is to take things you would ordinarily throw away and reuse them. Milk crates can become book shelves and metallic drink pouches can be stitched together to make pencil cases for the children. This practice is called upcycling and you can either do it yourself or contribute reusable household trash to organizations that convert it into eco-friendly products. To help one company is offering consumers a way to reduce their household garbage while earning money for local schools or charities. Through free collection programs called Brigades, upcycling pioneer TerraCycle is collecting and paying for packaging waste from household staples—from the bathroom to the kitchen to the classroom.