Johnny Jet says that when you're traveling and need Wi-Fi, one hack is to walk into the lounge and request a day pass, then look around for a sign that offers the Wi-Fi password. If you don't buy the day pass, at least you have free Wi-Fi. Check out this website that offers websites for all Wi-Fi passwords in airports around the world. Or use a service provider that allows free overseas data like T-Mobile. Google Fi is also another option.
This week's travel app - Aviator Flight Pack. It's for iOS only, and costs $1.99.