Many years ago at a classroom management training I brought away this self regulation idea for students who have difficulty with managing their behaviors. You involve the student in identifying what behaviors they display when they are calm, BUGGED, and their personal signals of stress. Then you work together to plan "Short Cut" choices to avoid a "meltdown". This sample is one I used a few years ago. I simply attached the visual to the student's desk as a constant reminder for self monitoring.