International roaming might be the two scariest words when it comes to mobile data. Roaming charges conjure up images of outrageous phone bills and long, frustrating calls to your mobile phone provider. But when you’re travelling, turning off your data full stop isn’t really an option. Whether you’re travelling for work and need to be in constant contact with your office or you’re on vacation and will be navigating new cities or posting updates to social media, chances are you’ll need frequent connection to the internet. If you’ve ever purchased a prepaid data plan from your current provider, you’ll know that they can be costly. So, what’s a traveller to do?