Meritline offers the factory-refurbished Logitech Wireless Laser Anywhere Mouse MX in Matte Black, model no. 910-000872, for $34.99. Coupon code "MLCKW08GNL1" cuts it to $27.99. With free shipping, that's $7 under our November mention of a new unit and $4 under the lowest total price we could find for a refurb. It's compatible with both Windows and Mac and features laser tracking, scroll wheel, thumb buttons, 2.4GHz wireless connectivity, micro USB dongle, and carrying pouch. It requires two AA batteries (it's not clear if they're included). A 90-day Logitech warranty applies. Coupon expires after 100 uses.