350 million printer cartridges end up in U.S. landfills every year. By recycling your empty printer cartridge, you can keep 2 lbs of waste out of the landfill.

Recycling is free with a prepaid label for boxes of 20+ cartridges or 20+ lbs. Smaller boxes may carry a $12 fee from Recycle Responsible, and cartridges they don't accept are $3 each, so check their accepted-cartridge list before shipping.