Sears offers the Craftsman 13" and 18" Tool Bag Combo, model no. 37537, for $14.99. Plus, Shop Your Way Max members bag free shipping. (Not a member? It's free to sign up for a 90-day trial; otherwise, shipping adds $7.75. Free in-store pickup is also available.) That's the lowest total price we could find by $9, although we saw it for $5 less last month. These bags feature heavy-duty zippers and exterior mesh pockets.