Free Store Credit

If you live near a Staples or an OfficeMax, and have a surplus of empty inkjet cartridges (Lexmark, Dell or HP originals), these two stores will give you a $3 store credit for every one that you bring in. The credit (no pun intended) for this goes to the bargain section on About.com.

The stores will let you use up to three credits (read: $9) at a time. With this you will be able to find some really good deals on various items as both stores have great value sections. So whenever you see an empty inkjet cartridge laying around, go ahead and pick it up, it will give you $3 in store credit!