How did I obtain my Non-O Visa (Retirement) in Thailand without using an agency?

This is an update to my husband and I getting our Non-O Visas (Retirement) at Chaeng Wattana Immigration Centre.

A huge big thank you to Tod Daniels for all his help and information.

Over 4 Trips and totaling 10,108Baht per person (this is including the taxi fare and tolls from our residence at Khlong San) we have obtained our Non-O Visa, Yearly Extension of Stay and Multiple Entry Visas without the help of any agencies. I was informed that I would not be able to do it myself and would need the help of an agency at a cost of 40,000 - 45,000Baht each and I have proved a lot of people wrong and it is not hard to do on your own.