Lenovo offers its Lenovo N70A Wireless Laser Mouse in Dark Gray, model no. 0B44660, for $39.99. Coupon code "USP1FE444660" cuts it to $13.99. With free shipping, that's tied with our October mention and the lowest total price we could find by $22. Sales tax is added where applicable. It features a rotating design, 1,200dpi resolution, nano USB dongle, up to six months of battery life, and more. Coupon expires February 25.