Nubeestore via Amazon offers the Volmate 6.6-Amp Triple USB Car Charger in four colors (Black/Silver pictured), model no. VOL66A, for $18.98. Coupon code "V66A8OFF" cuts it to $10.98. Plus, Prime members bag free shipping. (Non-members can spend $35 or more for free shipping; otherwise, it adds $5.18.) That's tied with last month's mention of a similar model, a $19 savings, and the lowest total price we could find. This MFI-certified charger features a 2.4A USB port and two 2.1A USB ports for a combined 6.6A. It's compatible with most smartphones, tablets, and other USB-charged devices.