Lenovo offers its Lenovo N50 Wireless Mouse in Black, model no. 0C41072, for $29.99. Coupon code "USP1MA251072" cuts the price to $14.99. With free shipping, that's the lowest total price we could find by $9, although we saw it for $6 less last fall. It features an optical resolution of 1,000dpi. Deal ends March 18.