One of the challenges of OneNote is keeping track of multiple notebook files. Here's some suggestions on how to handle that issue.http://www.makeuseof.com/tag/never-lose-note-onenote-notebooks/
OneNote and Security
One of the unspoken challenges with OneNote is when it comes to security. By definition, the tool is designed for open collaboration. Unfortunately this can introduce a plethora of issues around protecting content and access to that content. Let's address some of the most common questions.