Since I have A Very Important and Extremely Glamorous and Sometimes Dangerous job that involves work that is almost strictly online, I don't necessarily need to go into the office every day. I choose to go into the office on the days when I wake up and say, with fortitude: "Today, I shall have no natural light whatsoever, and shall be alternately overheated and chilled to the bone, depending on the floor in which I wander. I shall also be subject to strange, flickering fluorescence, and the sad knowledge that my office is so far from humanity that no one will ever know if I am actually in residence."
It is sad to say that I often do not choose this option. My photographic evidence, below, will make this all perfectly clear.