The University YMCA has coordinated a waste reduction program called "Dump and Run" since the early 2000's.  At student move-out, hundreds of volunteers help collect the reusable materials for resale after summer break.  Then the weekend before school starts, the YMCA's staff and volunteers sell the materials at a massive "garage sale" in the Stock Pavillion.  The University YMCA is a local non-profit, and they work with the International Student and Scholar Services department on campus, as well as University Housing.