Walmart offers the HP Ultra Mobile 16" Laptop Backpack, model no. WW866AA#ABL, for $9.88 plus 97 cents for shipping. (Free Site-to-Store shipping is also available.) That's the lowest total price we could find by $9. Sales tax is added where applicable. It features two side accessory pockets, adjustable shoulder strap, and support for most laptops with screens up to 16".