ComboInk offers this PGI-250XL / CLI-251XL Canon-Compatible High-Yield Inkjet Cartridge with Chip 12-Pack for $54.60. Coupon code "CICRAZY250XL" cuts it to $34.60. Shipping adds $3.99. These cartridges fit several types of Canon inkjet printers; use the compatibility chart on the product page to check specific models. Deal ends May 11.