What stores do i get discounts for ink Cartridges?

when i take back the old ink cartridges





are this any?


staples


bestbuy


office depot


circuit cityWhat stores do i get discounts for ink Cartridges?
Generally, prices are the same almost everywhere, but what you can do is, go to any office store, for example, Office Max or Office Depot ect., go to a section named Ink Cartridges Refill or something like that, you just refill the same cartridge and its cheaper too.