you can also come on a tourist visa or visa exemption, and convert that to a Non O visa by reason of retirement. It is for 90 days. As soon as they put the sticker in your passport they stamp it “used.” Then, if you meet the conditions, you can extend it for one year. I did this in 2018, extended it each year ever since.
if you port to Google voice before you leave the US, while you still have a US cell number, it may work, mine has worked for five years with most banks. I did lose my Venmo recently. However, capital one denied me a new account because it wasn’t a real US cell. Do not tell anyone you’re doing this, or they may cancel your account. Some banks or credit cards can send the OTP to any number that you can receive, others know that it is a VoIP, etc.,, and require a genuine mobile number in any country. Still others, like my capital, one, require an active cell number in the United States. So the answer is it depends.
some countries need the IDP from some other countries in order to drive there. It can be a matter of a non-Roman alphabet, like if your license is in Arabic or Chinese, but also, I just went to Poland and couldn’t drive because I didn’t have an IDP. It turns out the US didn’t sign the 1949 convention or something, and although IDPs from the US are available by mail now, it’s a lengthy process, and I didn’t have time. I actually have a Thai IDP, but forgot to bring it.
they passed a law in 2019 that you don’t need a new TM30 if you return to the same home if if you left the country. Immigration offices varied if following this. Now Bangkok has connected the TM30 and 90 day reporting systems, so you need a new TM30 every time you either 1)stay at a hotel that does a TM30 or 2)leave Thailand and return