What is the process for extending a retirement visa in Thailand at Kalasin Immigration?

I went to Kalasin Immigration for an extension of stay due to retirement. I got there at the opening time of 08:30 and was first in line and out the door at 09:30. I am a Canadian so use a letter from my embassy as proof of income. I showed that my Passport with a copy of each used page, my yellow book and pink ID card and a copy of each. The officer then asked for a copy of my wife's ID card and Bluebook and I had them with me so showed them. I had the TM8 form filled out and a picture. And the reentry form for one entry and picture. That was it, previous years they had me sign a couple of other forms, but not this year. ฿1,900 for the extension and ฿1,000 for the single reentry. They also updated my 90 day reporting. A very simple process. my praise to the Kalasin Immigration department.