Staples offers the Dell E310dw Wireless Duplex Laser Printer, model no. STP-70X0HE, for $39.99. Plus, Staples Rewards members receive free shipping. (Not a member? It's free to join.) That's $30 under our mention from last month and the best price we've seen. (It's also a current low by $50.) It features print speeds of up to 27ppm, automatic duplexing, USB, and a 250-sheet capacity paper tray. Deal ends August 15.