Hi all. There was a post in the GTD section that referred people to my Mighty Notes note-taking system. I believe it would be better placed in this section...
Mighty Notes is a designed to elevate ease of and insight into note taking for business purposes. It's not software; it's a methodology for pen/paper or computer note taking. Many people have found it helpful.
It's a free PDF download, a quick read, and easy to implement. Enjoy.