Meritline offers two Brother LC75-Compatible Inkjet Cartridge 4-Packs (8 cartridges total) for $8.95. (Select "2 Sets" under "Buy More Save More".) Coupon code "MLCR19GN" cuts the price to $6.95. With free shipping, that's $2 under the lowest total price we could find for a similar cartridge set elsewhere. It includes one of each: black, cyan, magenta, and yellow.