If you've ever been to the airport, you know the drill. You line up at the check-in counter and wait your turn to hand over your passport and boarding pass. But once you're finally at the front of the line, the agent asks a question that always throws you for a loop: "What's your address?" Why do they need to know your home address? Don't they have that information already? Well, as it turns out, your home address is not actually what they're looking for. What they really need is your luggage tag information. And if you don't have a luggage tag, chances are good that your bag will end up on the wrong plane. template Thankfully, there's an easy solution to this problem: