Seriously. If you do only one thing before you leave, make it getting travel insurance. I’ve heard far too many horror stories of travellers injuring themselves in remote places and ending up in hundreds of thousands of dollars worth of debt. Don’t think that it won’t happen to you, because you know those travellers they thought that, too. I use World Nomads for my travel insurance provider and I’ve been really happy with them.
Sunscreen’s a good idea for situations where you can’t otherwise avoid extended sun exposure, but it’s got its problems too. It enables you to spend unnatural amounts of time exposed to the sun, and unnatural is almost always bad. Plus it blocks your skin from absorbing all the sun’s nutrients. There’s also a debate about whether some of its chemicals are toxic or not—if not to you, at least to the environment. And…
Invest in Luggage: After you figure out if you will be a “carry-on only” or “check only” type of business traveler, invest in a lightweight, durable piece of luggage that has a warranty. The same goes for a laptop bag. Whether you choose a shoulder bag or backpack, make sure it has a lot of padding and distributes weight evenly. You do not want your luggage breaking in the middle of an airport.