Trish Witkowski of Foldfactory.com gives a quick overview of the most important changes and general guidelines for automation and machinable rate USPS Folded Self-Mailers (FSM). I have been watching her “Fold of the Week” videos for the past year and I think she is one of the most knowledgeable in this space nationally. I made sure to do this post so I could go back and reference this video when I had questions and I hope you will do the same.