At CompAndSave, buy one refurbished Brother-Compatible LC103 Inkjet Cartridge 4-Pack for $19.16 and get two more for free via coupon code "DNBOGT103". (Add three 4-packs to your cart, then apply the coupon.) Shipping adds $3.99, or spend over $50 to qualify for free shipping. Each 4-pack features one each of black, cyan, magenta, and yellow ink cartridges. A 1-year CompAndSave warranty applies. Deal ends June 8.