Sears offers the Craftsman 9" x 11" Sandpaper 50-Pack with Portfolio, model no. 22893, for $6.96 with free shipping. That's $3 below our mention from two weeks ago and the lowest total price we've seen. It includes 40, 60, 100, 150 and 220 grit sandpaper.

Update: Shipping now adds $6.99, so opt for free in-store pickup.