To complement what I wrote earlier about the Be-Do-Have concept; I introduce to you the best productivity tip of all time:

Do Something You Like!

Yes, indeed. If you're passionate about the things you want to accomplish, and love what you do, nothing else matters. Things will Get Done!

Regardless of what technology you implement, what habits you change, what time you wake up; if you don't like what you do, you won't be successful in maximizing your potential.

So, before you start getting involved in doing, do yourself a favor and find out how and what you really like to do. Remember the Being comes before the Doing, and Having ;-)