Does anyone know of this?

Bill and I were at the post office today. He went in line and I looked around. When I see something that says 'recycle', it gets my attention. So I read it. It was pre-postaged envelopes for recycling your ink cartridges. Just put it back in the packaging when it's empty, put in the envelope, and mail it. How easy is that. It gets mailed to a recycling center in Franklin, Tenn. I was wanting to know if anyone else has seen this, too? Let me know. And what else does this center recycle? I will try to find out.