This cute Microsoft Vertex Notebook Messenger Bag is on sale for $19.99 after a $10 instant rebate at Buy.com! It has great reviews, holds laptops with up to 15.4″ screens, and ships for free. The rebate is only available through 12/19 and there is a limit of 5 per customer.
Buy.com sometimes runs out of their products (like we saw yesterday), so make sure not to wait too long if you are interested!