Newegg offers the refurbished Logitech M560 Wireless Mouse in Silver, model no. 910-003910, for $9.99 with free shipping. That's tied with our May mention as the lowest total price we've seen. (It's also $13 less than a new unit.) This wireless mouse features a USB nano-receiver, Windows 8 edge menu button, and ambidextrous design. One AA battery is required (included).

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