As one of its daily deals, PricePlunge offers the Logitech Wireless Touchpad, model no. 910-002345, for $18.99 plus $2.99 for shipping. That's the lowest total price we could find by $6. (For further comparison, we saw a refurb for $6 less in January.) This multi-touch navigation pad features a 5" touch surface, gesture-based controls, USB receiver, and more. Two AA batteries are included. Deal ends today.