For me, the most important thing to do before programming is: Going outside for some time in the morning (e.g., for a walk), or I will be brain-foggy for most o

For me, the most important thing to do before programming is: Going outside for some time in the morning (e.g., for a walk), or I will be brain-foggy for most of the day. I don't care about other people being around or not - I like people and I like exchanging little bits of information while programming (to get out of the "box" for some seconds). Also, having other people around me somehow forces me to look at code from their perspective once in a while ("Will he like the method names?", "Will he kill me if I do it like this?",...) - it's like an internal review, triggered by the presence of others.