Office Depot offers the Logitech V220 Cordless USB Notebook Mouse in Purple, model no. 910-001466, or Silver/Black, model no. 910-000153, for $8.99. Coupon code "226988177" cuts it to $8.09. With free shipping, that's the lowest total price we could find for either color by at least $6, although we saw them for $1 less four weeks ago. Sales tax is added where applicable. This mouse requires one AA battery (included) and features a 1,000 dpi resolution, battery indicator, and more.