Do you own a dual sim phone? More aptly, do you know what one is and how to make the most of it? No? Me neither until my first solo trip. But don't worry, I'm about to fill you in. During my first solo trip to Curacao, I took full advantage of my phone's dual sim capacity and I haven't looked back. There are a ton of ways to profit from your dual sim phone while travelling and I've listed my favourites for you below.