I'm beginning to wonder if email is the biggest barrier to work achievement.

Years ago, when I when I worked in an office with other people, I learned that email was a great tool for communicating, and more importantly sometimes, documenting conversations. Popping round to someone's desk and discussing a topic was great, but you had no record of the conversation, and if they were away, on the road, or you just simply spent the day trying to meet at the same point for the 5 minute talk, email was a great alternative.

Today, we use email almost exclusively, and often in preference to, meeting in person or talking on the phone. For those, like me, who work from home all the time, you basically have no choice. It's simply not possible to 'pop' over to somebody's desk, when in all probability that desk is on another continent.