Travel ‘Free’ travel can be a real gotcha. Here’s when to say yes and when to run away. February 21, 2020Christopher Elliott, Special to USA TODAYComments Off on ‘Free’ travel can be a real gotcha. Here’s when to say yes and when to run away. There are three flavors of "free" in travel. There's dangerous, there's benign – and there's truly free. Here's how to tell the difference.