Staples, Officemax and OfficeDepot will give you $2 in store credit for every empty printer cartridge you turn in - up to $40 a month. All three stores have conditions. For example, Staples requires that you spend $30 on ink every 6 months. We have customers taking advantage of all three offers to get back the money they spent on cartridges. If you could just find cartridges for $2 each, you could get a lot of free ink. But you know it's just not possible. Or is it? At BestInkandToner.com we have cartridges for as low as $1.50 After rebate, you could even get back more than you spent.