For today only, you can get a Bem Wireless 8-Pack 2600mAh Power Bank Station Set for $38 with $5 shipping at Meh.com. This same set retails for around $60 or more at places like Amazon or Jet.com. Each of the eight included powerbanks has a built-in Lightning cable and a micro USB cable so they're compatible with any Android phone or newer iPhone. Plus, since they come with a charging station, all eight will only occupy one outlet when they need to be charged. There is no sales tax (except CA and TX).