There are numerous ways to travel across Thailand, some cheaper than others. The train is my favorite. It is cheap, much faster than a car, and fun. For no more than a few dollars, you can travel across hundreds of kilometers and arrive at your destination - Phuket, Chiang Mai, Bangkok, or whatever city you wish to explore. 

Have you taken a river cruise? It's an easy and slow way to see a country or area - and make the most of your time. River cruises allow you to take a journey that most won't ever experience - and visit some of the world's most important cities, located right on the water. Paris, Vienna, St. Petersburg, Budapest - all of these important historical cities developed because they were on the water!