- socializing
- doing some work that required the presence in the office (almost 1000 interviews)
- interacting with some contractors that joined me for a few years. I had to train them, then to be around because I found that me being approachable was making them more productive when they hit any sort of barriers that I could help with
- being in the office was one of the conditions for any career growth
But that's about it, these days I don't have any of these reasons so I barely go to the office, it is a 3 hours drive or at least 1-1.5 hours with the motorcycle (city traffic).