I work in the IT Industry and very rarely go into the office these days. My local office is 1/2 hour away but the team office is 2 1/2 hours away. I can go months without seeing a colleague - daily conference calls with WebEx are employed to keep us in communication. When I do go to the team office, I get a lot of "while you're here..." taps on the shoulder so don't actually get a lot of work done. I also work a lot in Data Centres on my own which can be a very lonely job sometimes.