CompandSave offers the Canon PGI-5 / CLI-8–Compatible Inkjet Cartridge Combo 5-Pack for $23.95. Coupon code "CRAZY58" knocks it to 99 cents. With $3.99 for shipping, that's $1 per cartridge and the lowest total price we could now find by a buck. (We saw a 15-pack of these cartridges with photo paper for $15 shipped four days ago, since expired.) This pack includes a pigment black, black, cyan, magenta, and yellow cartridge. Offer ends June 15.