It's true that most luxury hotels may provide you with appropriate outlets or adapters for all of your devices, but the last thing you want to do on arrival is call to the front desk to obtain one. Plus, adapters like these have the often needed three prong converter built in and can charge multiple USB devices simultaneously. Available at electronic stores or Amazon for about $15, this little device is the best bet for all your gadget charging needs. Pack one for each traveler on your journey!