Right now, I am finishing my first 90 days, including the extension I paid for. I am leaving next weekend and going directly to Hanoi, Vietnam, for three days before coming back. As the latest comments mentioned, don't waste your time with border runs (which would be an option), but flying is better. Hopefully, after another three months, I will be visiting China and doing the same.

@Erin ******

, in my experience, getting the extension was not as quick as people always say. I am in Chiang Mai, so perhaps it could be different in another city. Bring with you the TM30, check that all the information in it matches, print a copy of your 2-month stamp on your passport and another copy of your main page with the photo and information, 1 passport-type photo with a blue or white background (I cannot remember if it's 3cm x 2cm.. you can see this on the form TM7), your physical passport, and 1900 baht. Don't forget to bring your own pencil because you will need one to complete another form, the TM7. You can get this one at the immigration office, usually at the entrance; grab one and fill it out, do all this with enough time, dont wait until last day.

@Vova ******

even 45 days before your 2-months stamp end and check the last comment before yours, I replied with my experience doing it.

@Michael ******

just in case, yes, I have my ticket flight back home activated. I just postponed it until January.. but still there and is the first time that I am doing this, I am working remotely so I will be happy if the allow me to stay here for xmas and eve year.

I'm on it! For 2 months, I did the extension for another 30 days (total 90 days). I will be traveling to Vietnam for a weekend vacation and then go back and hopefully get another 2-month stamp.