Setting up categories, advice?

Content

It's been my experience that everyone sets up file folders their own way and I'm lost if I try to navigate someone else's structure. Building on that lesson, someone advised me that in setting up categories in which to put all of the various pieces in the LearnCenter I shouldn't be thinking about much more than two levels (a category and a sub) or I risk having the aforementioned problem. We have a natural distinction when building our LearnCenter in that we have Safety Training, IS Trainign, HR Training, Maintenance Training, and Production Training. So there's one level. And specific