Meritline offers this Dual USB Car Charger Adapter for $2.99. Coupon code "MLCK214MNL1" drops it to $1.09. With free shipping, that ties our December mention and it's the lowest total price we could find for such a device by $4. This adapter allows you to use your existing USB cable to charge two devices from your car's DC power outlet. Coupon expires after 200 uses.