Meritline offers the G&G PGI-250XL / CLI-251XL Canon-Compatible Inkjet Cartridge 10-Pack with Chip for $31.95. (Choose "2 Sets" on the product page.) Coupon code "MLCX06WN" cuts it to $22.95. With free shipping, that's the lowest total price we could find for this quantity by $42. These cartridges fit several types of Canon inkjet printers; use the compatibility chart on the product page to check specific models.