Don't spend extra money on original cartridges from your printer manufacturer, independent sellers often sell cartridges that work just as well and of course are much cheaper.
The only drawback is that you have to be careful and look out for badly made cartridges that can result in poor quality print outs and in worst case can damage your printer. Refillable ink cartridges is another option. This solution should be used with caution, the risk of leaks is high and might not be worth the risk.
Cleaning Cartridge for Epson C82 Magenta
Original New OEM Tektronix/Xerox 016-1887-00 Fuser Unit (110V)
Brother LC01Y Yellow Original Print Cartridge