A study by Microsoft showed just how lethal interruptions are to productivity. The researchers taped 29 hours of people working in a typical office, and found that they were interrupted on average four times each hour. Sounds like a day at most offices. Here’s the kicker – 40% of the time, the person did not resume the task they were working on before the interruption. The more complex the task, the less likely the person was to resume working on it after an interruption. That means most of us are getting derailed from our work four times each hour, maybe more if you work in a high email traffic office.

So how do we get back on track? The answer lies in a concept called the “Urgent vs. Important Matrix“, which I was reminded of (and inspired to write this post) when I read fellow Coloradan Devin Reams‘ excellent post entitled “Instant Email is Good for Nobody” (agreed). Most of us have grown up considering “urgent” and “important” to be the same thing, but that is not always the case. An issue can be both urgent and important (a heart attack), urgent but not important (a telemarketer is calling), important but not urgent (that big project you’re working on), or neither (surfing the web). As such, we need to develop the ability to quickly identify urgent and important interruptions that need to be dealt with right now, and file the rest away to be dispatched at regular intervals when they will not interrupt us from the tasks we are focused on completing. Be particularly wary of “urgent but not important” tasks – these often masquerade as top priority items and steal attention they don’t deserve.

In Tim Ferriss’ fantastic “4-Hour Workweek” he discusses his method for handling email interruptions. Tim checks email once at 11am and once at 4pm – that’s it. It’s called batching, and it helps not only to reduce interruptions, but also decreases the time spent switching between tasks (28% of your day, according to the Microsoft study).

Since I’ve left banking and been working with Hosting.com, I’ve tried to turn over a new leaf in email management. I’m no Tim Ferriss, but I try to only check emails once an hour and I completely turn off the alerts on my iPhone during things like dinner, movies, and social time with friends. Not only has it made me more productive, it’s drastically reduced my stress level. Additionally, people learn that email is not a viable option for getting ahold of me instantly. If something is both urgent and important, I get phone calls, which are totally fine and welcomed. My boss operates on the same principle, and it actually creates a great work dynamic in our office – urgent/important things get personal phone calls or face to face conversations, while non-urgent items get dropped in our email boxes for handling at the appropriate time. We both know that if our phone is ringing, the other has considered both the importance and urgency of the task before dialing the number. If you can get everyone in an office or on a team working under this principle, it really does dramatically increase efficiency and decrease stress – I highly recommend it.

As we sat alternating rounds at one of our old haunts, he described to me a renewed outlook he had developed over the past several months of particularly long hours at work. He had come to the realization that in addition to professional success, personal zest for life was an equal contributing factor to one’s happiness. Accordingly, he resolved to inject some life back into his waking hours, and that began with a definition of what living meant.

When he sat down to define the things that made him happy, it became apparent that so many of us think that happiness is defined by “having”. That is to say having a 56″ TV, having a nice car, having an arbitrarily high account balance. What my friend realized is that “having” is a poor substitute for “doing”. Thinking back, I realized he was right. The happiest times in my life have not stemmed from things I had, but from things I did. The state championship my senior year of high school. The spontaneous overnight drive with roommates to Florida for a weekend in college. A wild weekend in New York City with my brother and a close friend. Experiences pay dividends far richer than possessions.

So, rather than medicating with shiny toys, my friend resolved to spend his money “having” remarkable experiences with friends. He told me he sat down to write out 30 things he wanted to experience while he was still young and relatively unencumbered by family, mortgage, and age. We made plans to accomplish at least three of them in 2010 together. His list is titled “30 by 30″, and these are the things he wrote down.

1. Travel to Las Vegas and witness a title fight from the good seats.
2. Learn guitar well enough to play cover songs for tips one night in a bar.
3. Ski the back bowls at Vail without falling.
4. Headline the local paper just once, for something positive.
5. Get lost for a summer weekend in the Rockies with only a tent, sleeping bag and camping stove.
6. Chop down a tree for firewood.
7. Soak up the tropical weather and several mojitos in Miami.
8. Learn mixed martial arts.
9. See the Sox play at Fenway, curse at visiting team with local Bostonians.
10. Travel through Europe for several weeks without a defined itinerary.
11. Become “first name basis” friendly with a celebrity I admire.
12. Climb to the peak of a mountain tall enough to be an accomplishment (more than a day hike).
13. Attend a Hollywood party – with an invitation.
14. Pick up a girl who is way out of my league.
15. Rent a Ferrari and drive the Northern California coast.
16. Learn to snowboard.
17. Live like a king for a week in Buenos Aires.
18. Become a recognized expert in a topic of my choosing, however narrow.
19. Grow a real, outdoorsman-caliber beard.
20. Sail for a week in the Bahamas, on a rented boat, without a guide.
21. Become a good enough sailor to achieve #20.
22. Attend a party at a rooftop bar with a view in New York City.
23. Climb to the top of the Eiffel Tower.
24. Experience the neon and culture shock in Tokyo.
25. Become a regular at a local bar. Enjoy free drinks.
26. Beat one of the old men in the park at chess.

See the following bands live, from up close:

27. Billy Joel.
28. Journey.
29. John Mayer.
30. The Goo Goo Dolls.

An ambitious list for sure, and one that will probably not end up fully marked off by his 30th birthday. However, if even half of the items do get accomplished, they should provide some excellent fodder for reminiscing next time we share a pint at Christmas. To those following along at home – what things would you put on your “30 by 30″ list? If you’re over 30, what are some things you still want to experience before retirement (i.e. things you don’t want to put off)?

Also, if this is a topic that interests you, make sure to read Paul Graham’s essay “Stuff” which discusses the “over-stuffing” of America. Take the money you would spend on “stuff” and spend it on something that’s actually going to increase your happiness level – life experience.