Keep a Diary to See Clearly
The best thing would be to write down events from day to day. Keep a diary to see clearly--let none of the nuances or small happenings escape even though they might seem to mean nothing. And above all, classify them. I must tell how I see this table, this street, the people, my packet of tobacco, since those are the things which have changed. I must determine the exact extent and nature of this change.
Jean-Paul Sartre, in 'Nausea'