[ok1984]

It might sound strange but for me the most efficient days are when I wake up early, have a quick breakfast and commute to work, when I am in the car I mentally plan what I will do today and start programming in my head so when I reach the office (around 06:30) I connect my laptop, take a coffee and start working I typically manage to work un-interrupted up-to 10:00 and I typically manage to finish all my planned tasks, only then I check my phone/email and start interacting with other colleagues.

What I think is the most importante thing is the planning I do while commuting to the office (30 minutes), no phone, no radio, just thinking and planning the day.

The same thing happens when I do long trips for work 3-5 hours by car, it might seem as lost time but they really help me organise my thoughts that when I sit in front of the PC I dump everything.