AnkerDirect via Amazon offers Prime members its Anker 18-watt Dual Port USB Car Charger in White, model no. AK-71AN1852C-02WA, or Black, model no. AK-71AN1852C-02BA, for $7.99 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping adds $6.98.) That's tied with our summer mention of a similar model and the lowest total price we could find by $7. This 18-watt charger is compatible with iPhone, iPod, BlackBerry, and many other USB devices. It can charge two devices simultaneously.