Lenovo offers its Lenovo IdeaPad B5650-WW 15" Notebook Backpack in Black, model no. 57Y6457, for $39. Apply coupon code "USPC11JL36457" and it falls to $15.60. With free shipping, that's tied with our mention from a month ago and the lowest total price we could find by $15. Sales tax is added where applicable. It can accommodate laptops with up to 15" screens. Other features include a zippered main compartment, mesh side pockets, padded shoulder straps, ergonomic handle, and more. Coupon ends July 18.