Bestek via Amazon offers its Bestek 200-watt Car Cigarette Lighter DC Socket Splitter and 4-Port USB Charger
, model no. MRS203BU, for $19.99. Coupon code "AQC9FF6Z" cuts it to $12.99
. Plus, Prime members bag free shipping
. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $6.59.) That's $38 off list and the lowest total price we could find. Features include two DC sockets, a cigarette lighter socket, four smart USB charging ports, intelligent LED indicator that monitors the car battery, and green LED light for sockets and blue for USB ports. It comes with a car cigarette lighter.