Did my multi O spouse in Savanhket on Tuesday, same as every year or so. I use the form fillers across the road, 100 Baht. You can do it your self, but they know what's wanted on the day. Tuesday they only took the photo copies of, passport main page, house book, wife's ID card and wedding certificate [ not the part 3 ] only the decorative one, 2 photo's. 9 30 am only 4 people in the line, 5 minutes and done.