Staples offers the Logitech MK270 Wireless Desktop Keyboard/Mouse Combo, model no. 920-004536, for $14.99. Plus, Staples Rewards members bag free shipping. (Not a member? It's free to join.) That's tied with our March mention as the lowest total price we've seen and a current price low by $6. This mouse and keyboard set features 2.4GHz wireless connectivity, eight hot keys, and spill-resistant keyboard. It purports to have up to two years of battery life for the keyboard and one year for the mouse. Deal ends May 30.