Use green bins for metal, plastic, and glass and blue bins for paper and cardboard. In dining areas, yellow bins are for food waste and the compostable to-go containers and cups provided in all Homewood campus dining locations (they're made from corn!). Use the gray "Incinerate" bins for all other waste like chip bags, candy wrappers, Styrofoam and plastic bags. This trash is burned at the incinerator just a few miles away near the stadiums.