17. Have open travel plans
This was advice that I read on another website that dealt with tips on travelling to Southeast Asia and I found that it was so right.
Either as a solo traveler, or if you’re going with someone else, keep your plans open. Read the guide books. Be prepared to make new (temporary) friends and to travel with them.
Maybe you want to go to Chang Mai in the north, or Phuket in the south or maybe you want to join some people on a trip to Cambodia. Maybe in Cambodia, you want to travel with someone. Whatever it is, keep your options open.