Lenovo offers its Lenovo Wireless Mouse N50 in Black, model no. 0C41072, for $29.99. Coupon code "USP1JL441072" cuts it to $9.99. With free shipping, that's tied with our mention from two weeks ago as the lowest total price we've seen for this mouse. (It's also a current price low by $15.) Coupon expires July 31.