You can never have enough free hands at the airport for juggling your boarding pass, your passport, your coffee, your snacks, and your carry-on bag. The solution to that problem came to amateur inventor Robert Lian while he was waiting for a flight one day. What about a plastic tail that let travelers tow their luggage like a trailer?
Source: Gizmodo – The Greatest Innovation in Travel Lets You Drag Your Suitcase With No Hands