I have recently posted a teaser on stepping out of the comfort of the place you come from and setting a foot to wander the world. Here is my learning on what happens when you actually do.
Credit card, passport, phone. You will probably forget something somewhere. And most likely, more than once. As practice has it, any travel gap can be covered by a credit card, passport and a phone or a combination of the three. So make sure you hold on to these fundamentals. Everything else is replaceable. It is still useful to pack as few valuable as possible (and in some case, like when travelling to Brazil, to avoid taking any at all), to lock the few you take with you in a safe and to check the room before leaving the hotel for good. Knowing what is enough though will save you a lot of time (and peace of mind) when packing.
Follow your (photo) hunch. Places make first impressions, too. And these first impressions matter. So take pictures of whatever catches your eye. The palm trees will become a usual part of the scenery after a few days on an island, the magic of the Mediterranean sunsets will fade away after a few nights, so keep the memories of the things as you first see them. And remember: imperfect photo is better than no photo at all. In a few months, you might find things that you hated in this picture less dramatic. In a few years, they might become a source of a great story.
Some of the best travel memories happen at 6 am. I learnt it the hard way: waking up that early is the last thing I want to do on vacation. And it can be oh so worth it. My trip to Iguazu falls would never be even nearly as amazing without a 6 am plunge into the smooth surface of the swimming pool followed by the breakfast in the sunrise rays (and a walk to the falls in the only company of coati). One of my best pictures from Rio is its sunrise, which Louveteau and I captured on our last day in Latam when we could finally catch the sun after several days of clouds at the dawn.