This idea was Project TGIF, or Turn Grease Into Fuel. Grease donation receptacles were set up, flyers were handed out, presentations were made, and eventually Cassandra and her team even managed to introduce a Rhode Island bill, which made it required by law that all businesses recycle their grease. This grease was later turned into biodiesel, which is a better alternative to petroleum-based diesel because more of its carbon dioxide is absorbed by crops than petroleum-based diesel's. Though Cassandra had decided to focus mainly on the heating aspect of her solution, this became a "win-win" situation - Rhode Island families were able to heat their homes using "Bioheat," the biodiesel, plus less fossil fuels were being used.