Best Buy offers the Targus Flip Function Laptop Backpack, model no. T-1211, for $34.99. Choose in-store pickup to dodge the $3.99 shipping fee. (Alternatively, pad your order to over $35 to bag free shipping.) That's the lowest price we could find by $15. It fits laptops up to 17" and features adjustable straps and a pull-tag phone ejector.