I mean seriously why would anyone NOT use OneNote??!
I work in a Microsoft District -- which basically means that we rely heavily (but not solely) on Microsoft tools and platforms. My favorite one, besides the entire Office 365, is OneNote. With the onset of summer and our collaboration with curriculum we have started using OneNote, which is Microsoft's digital notebook. It does everything!!! There truly is not much it cannot do. And with Office 365, you can not only create a personal OneNote for your self, but there is a Staff Onenote and Class OneNote. See below for a breakdown of the features (including what you get from add ins, etc.
I work with teachers and students as an education technology specialist for middle school and serve as the TXDLA K-12 Board Member. My goal is to share innovative and useful information for other educators, as well as catalog my personal finds along the way!