People just do "border runs" every two months to renew. Just leave for a couple hours and the 2 month limit resets itself. Having said that, there is still a 6

People just do "border runs" every two months to renew. Just leave for a couple hours and the 2 month limit resets itself. Having said that, there is still a 6 month (or thereabouts) limit to the total amount of time you can be in Thailand per year.