Groupon offers the Aduro Surge Dual USB Charging Station / Surge Protector with Phone Holders in Black, model no. SRG-FS3O01-2USB, or White, model no. SRG-FS3O08-2USB, for $14.99 plus $3.99 for shipping. That's $25 off list and the lowest total price we could find. It features three grounded outlets, two USB ports, fold-out holders for mobile devices, and a protection indicator light. Deal ends September 2 at 1 am ET.