Newegg offers the refurbished Logitech MK520 Wireless Desktop Keyboard and Mouse Combo, model no. 920-002553, for $29.99. Coupon code "AFNJ3292" cuts the price to $22.99. With free shipping, that's a buck below our May mention of a refurb and the lowest total price we could find by $6 for a refurb today. This mouse and keyboard set features an ergonomic design, 2.4GHz wireless connectivity, and more. It purports to have up to three years of battery life for the keyboard and one year for the mouse.

A 90-day warranty applies, but it's unclear who backs it.