1. Always always always, no matter what, have a current passport. You never want the reason you weren't able to take a sweet vacation to be because you couldn't get a passport in time...that would be the dumbest reason ever.
2. Take as little as possible and pack as tightly as possible, the less luggage you have the easier the trip.
3. Sleep is the last priority. If you have option to do something awesome while on vacation but it cuts into sleep time...do it anyway, as McKay likes to say "You can sleep when your dead"
4. Never go half way around the world just to eat food you can get at home. Always try something new that is native to the area you are in.
5. Try to get to know some of the people or participate in local activities, this gives you a better perspective of life outside your little bubble.
6. Write down what you do and take pictures, you may loose your memory some day.
7. Travel with family and good friends whenever you get the chance.
More to come....