Back then, whenever someone got promoted to E-5 they were jokingly called a Lifer.  A Lifer is someone who stays in the military, makes a career of it, and eventually retires after at least twenty years. As it turns out, that is what happened to me [almost twenty-one]. So this was my Lifer Book. In reality it was my first time ever as a supervisor and I knew I had to stay organized in some way. This was part of that.  I still use a spiral-type notebook to this day, keeping track of what needs to be done on a daily basis at the office and at home.