The lecture of Randy is great, especially since he knows that he does not have much time left in this world.
Meetings are the biggest time wasters. Try to avoid them wherever you can.
I don't believe in those tools popping up every so often asking me what I'm currently doing. That's very distracting as well.
It might be good to make a time-log for for a couple of weeks, but just to understand where you are spending your time so you may be able to improve things.
I like the time management stuff by Steven Covey.
... and by the way I'm lecturer for time management for IEEE for Europe/Middle East and Africa.
