Staples offers the Logitech Wireless Desktop MK320 Keyboard and Mouse Combo, model no. 920-002836, for $19.99. Plus, Staples Rewards members qualify for free shipping. (Not a member? Click here to sign up for free.) That's tied with last winter's mention as the lowest price we've seen for a new set, and a current price low by $10. (For further comparison, we saw a refurb for a buck less in February.) for $10 less in-store in February. Deal ends June 29.