Great Deal on Ink when you Recycle at Staples

Do you have tons of those empty ink cartridges sitting in a pile? I have a ton of them, these are only a few, and I have heard of companies recycling them and didn't really want to add them to the pile of trash at the dump so I've just been holding on to them. I used to refill cartridges but found that to be messy and I was getting unreliable results. When printing, I really need to use reliable cartridges so I'm not spending so much time re-printing or wasting paper.

Anyway, I found out you can take all these cartridges to Staples and they'll give you a $3 coupon for each one you bring in. You can use the $3 coupons towards whatever you'd like at Staples, doesn't have to be ink. You can also use 3 of the $3 coupons at one time (each day). So if you buy a new ink cartridge, you can get $9 off by using your coupons.