Nope, no tourist visa. I am staying on one-year non-immigrant visa's (multiple entry, usually type O). This requires me to go back home (The Netherlands) at least once a year and get a new one.

Getting a work permit is a bit tricky since I am not employed by a Thai company (requirement). The only other option is to setup my own company here which right away brings loads of administrative headaches with it (been down that road and got out rather quick).