Lenovo offers its Lenovo M3803 USB Optical Mouse in Black, model no. 0B46973, for $19.99. Coupon code "USP1AG46973" cuts it to $5.99. With free shipping, that's $4 under our July mention and the lowest total price we've seen for this mouse. (It's also a current low by $14.) Sales tax is added where applicable. This wired mouse features a scroll wheel, USB connectivity, 1,000 dpi, and more. Deal ends August 27.