Lenovo offers the Targus Eternity 15" Notebook Backpack, model no. 57Y6560, for $39.99. Coupon code "USP1D36560" cuts it to $14. With free shipping, that's the lowest total price we could find by $6, although we saw it for a buck less last month (since expired). Sales tax is added where applicable. It accommodates laptops with up to 15" screens and features a removable wrap pad and mesh side pockets. Deal ends December 19.