Apparently not every AC outlet has enough USB ports to charge your multiple USB gadgets. But if you want, the following Targus Plug-N-Power charging station with two ports will help you.
Targus’s Plug-N-Power is actually a practical surge protector that measures 5 x 3.5 inches and weights 6.56 oz. As we can see from the images, the surge protector comes with two USB charging ports, and with the help of a built-in USB fast charger, the charging station allows to charge your two USB-enables devices at the same time directly via AC outlet without need of USB adapter. Moreover, the charging station also comes with 3 AC outlets with 540 joules of surge protection in order to connect other electric devices. All you need to do is to plug the portable surge protector into any standard AC outlet.
The Plug-N-Power charging Station with two USB ports is priced at $29.99 USD. If you’re interested, jump to Targus official site for more details.