Staples offers the Lexar 16GB JumpDrive TwistTurn USB 2.0 Flash Drive 4-Pack, model no. LJDTT16GABNL, for $19.99. Plus, Staples Rewards members qualify for free shipping. (Not a member? Click here to sign up for free.) That's $5 per flash drive and tied with last month's mention in black as the lowest total price we've seen. (It's also a current price low for this quantity by $14.) These drives will come in assorted colors. Deal ends June 16.