Daily Sale offers the refurbished Logitech Ultrathin Keyboard Cover for iPad Air in Space Grey, model no. 920-005510, for $19.99 with free shipping. (Deal.fisher via eBay offers the same.) That's $8 under our September mention of a refurb and the lowest total price we've seen. (It's also $26 under the best deal we could find for a new one.) It features magnetic clips, toggles the iPad Air's sleep/wake function, and recharges via USB.

Note: The countdown timer on the product page does not reflect an actual expiration time and resets daily. No warranty information is provided.