Staples offers the Acesori Powerstick 2,600mAh USB Power Bank
in seven colors, model no. A-STK, for $6.99
. Plus, Staples Rewards members receive free shipping
. (Not a member? It's free to sign up
.) That's tied with our February mention, $53 off list, and the lowest price we could find. It features 5-volt/1-amp output, LED indicator, and sleep mode. Deal ends May 9.