Some thoughts (and four words) on productivity

Below is an email I sent to our entire team this week.  As I mention in the introduction, I don’t believe in requiring everyone at Heinz to follow a specific productivity methodology or system.  But I’ve also found that certain guiding principles are critical to whatever system you choose (formal, informal or otherwise) to increase your productivity, impact and success.
Here’s what I sent them:
Hi guys,
I wanted to share some thoughts around productivity best practices.  I literally started writing this email last year (I think I mentioned in an all-hands meeting that I had some ideas to share back in August) and finally got it done on the flight home today.
I’ve spent the past 10+ years trying to hone a system that helps me make the best use of my time.  It’s based on a few key books (Getting Things Done by David Allen, Mastering the Rockefeller Habits by Verne Harnish,