If you want to know about Johann Wolfgang von Goethe’s work routine, you should visit his house in Weimar. Check out the study of the man considered Germany’s greatest ever writer: mint green-painted walls, two windows with a garden view, a large wooden table with uncomfortable chairs. Goethe is said to have written the second part of Faust at this table. How, we might ask, did this room help him focus on his work? Firstly: the wall color. According to Goethe, who studied the effects of colors extensively, green provides “real peace” for the eye and does not distract from writing. For the late…