The beauty of the OneNote platform is that of all the platforms I've tried, it is the best at allowing multiple users to contribute to a page in real-time. (Michele—my counterpart in our San Diego office—and I share the notebook. ) Each day has its projects and tasks, then whatever isn't finished gets moved to the next day's page. As a system, it has worked so well that I've been using it since 2007 (with a few forays on other platforms to see if there was something better).
I recently discovered an analog system that I've started using for my personal notes called Bullet Journal.
Here's a short video that explains: