Evernote is one of my favorite and most used apps. I use it for project management, task lists, meeting notes, reference notes, web clippings, personal tasks and more.
I just found out about some great training videos on YouTube that show you how to do different tasks in Evenrote. Check them out here: http://www.youtube.com/user/EvernoteScott?feature=watch
If you don't use Evernote, check it out. It's free, easy to use, and cross platform. I used it for lesson planning, lesson notes, class notes, student notes and logs, and more as a teacher. As a CIO I use it for meeting notes, project management, contacts, web clippings, research and much more.