TigerDirect offers the Ultra Sentinel 15.6" Notebook Messenger Bag in Black, model no. U12-41420, for $19.99. This $20 mail-in rebate drops it to a net price of $0. With $2.99 for shipping, that's the lowest total price we could find by $43. It features a padded laptop compartment which can hold laptops with up to 15.6" screens, file pocket, shoulder strap, and more. Rebate expires April 21.