In 2013, the student group Greening Princeton and Building Services collaborated to launch a mixed recycling pilot in more than 100 rooms in two dorms. The mixed recycling pilot was a success and resulted in a 20 percent increase in recycling. Mixed recycling is now being rolled out across campus in parallel with an educational campaign and new campus labeling system to increase recycling rates. Check out the Campus Recycling Guide for tips, such as keeping the caps/lids on before placing them in the bins.