There are a ton of laptop bags on sale for only $4.99 at Amazon!! Here are a bunch of the cute ones I see, but check the “Related Items” area in the middle of the page – there are more!
Pacific Design Kailo Chic Structured Tote Red Hexagon – Notebook carrying case – red
Pacific Design Chloe Dao Nucleus Small Heels – Notebook carrying case – 15.4
Pacific Design Chloe Dao Nucleus Pinstripe – Notebook carrying case – 15.4
Pacific Design Evolution Tote – Black (PD0161)
Pacific Design Ruckus Laptop Messenger Bag – Notebook carrying case – 15.4
Nuo Tech Chloe Dao Mobile Tech Handbag-Pattern: Retro (Okay, not a laptop bag, but super cute!)
Nuo Tech Chloe Dao Mobile Tech Handbag: Pattern Blue Plaid (Ditto!)
(Thanks Swaggrabber!)