I buy generic brand cartridges on eBay. My printer can't always read the ink levels from them, but they do work. Saves me quite a bit of money! For instance: One magenta cartridge probably runs me $14-18 normally, but I just bought a set of 3 cartridges (one of each color: magenta, cyan, yellow) for a total of $12 on eBay and it was even free shipping. Also just bought 5 black cartridges for about $15 total (normally they'd be about $13 each).