The Disney Store has some great deals on their backpacks and lunch totes. Backpacks are as low at $10 each (regularly $19.50 – $24.50) and their lunch totes are $5 each (regularly $12.50). Use coupon code SHIPFIFTY for free shipping on purchases of $50 or more.
Most of the backpacks also include a free 2-week subsription trial to Disney Digital Books too. Check out the sale here.