A bit info re border run around Bangkok. Basicly there are four borders which are reasonable close. However each of them have pro and con. The closest is the one in Kanchanaburi, cheap for Western Passport, expensive for ASEAN, sometimes they close without prior notice. We had yesterday our first successful trip and plan to do the run regulary. The other borders are on the Cambodian side and are Aranyaprathet, the only comment that I have it is best avoided , a lot of people (long wait) and Non O holders are requested to stay overnight or fly OUT/IN. The other two borders are further south in the area of Pong Nam Ron, near Soi Dao, in Chantaburi province. Both are under the same juristriction so both border follow the rules, no problem for TWO times visa waiver entries in one calendar year and no problem for Multiple entry visa holders. People still complain about "overcharging", but these are actual service fee by agents. Other than that these three borders are OK to do border run. Enjoy your holiday and on 1st January 2018 the clock for 30day visa waiver or entry stamp will be reset at any border.