Newegg offers the MacAlly Micro USB Car Charger in White, model no. MiniCarUSBMP, for $3.99. Coupon code "SW728NE15" cuts it to $3.39. With free shipping, that's almost a buck under our November mention and the lowest total price we've seen. (It's a current low by $5.) This charger supports an iPhone, iPod, Android, or any device powered by USB. Note that it isn't suitable for iPad charging.