Here, you are contributing nothing to this discussion. Answering a work email is work. It's MENTAL but technically it's true, look it up! I'm using it to prove a point. In Thai law no online work is allowed.
My advice Paul Burns, just do it. Don't tell everyone you know. You work in private, dont take a job away from a Thai. What you are proposing is an unwritten rule. Care more about back to back tourist visas long term. Good luck mate.
Paul BurnsPaul Burns you would technically be breaking the law by answering an email here on a tourist visa. BUT you will 100% be fine doing what you suggested. Yes it's technically illegal, no one gives a fuck though.
Ok, you need a single entry tourist visa(60 days). You can go to the immigration to extend that for 30 day. That's 90 days. When the extension is coming to an end, you can go over a border and return immediately on a 30 day tourist exempt stamp. That's not a visa, just a free 30 day entry.
the single entry tourist visa for 60 days is going to be your cheapest and best option. No messing around at immigration if you took option 1 and no need for a full day in a cramped bus if you took option 3.