I keep three different sets of notes (all in plain text files—handy for grepping or running my analytics over). The “Worklog” is just that—a log of every minute of the day at 10 minute resolution. I wrote some code that pulls every event and compiles some stats about how my life is going. (It’s a little obsessive, but incredibly useful to spot trends that you cannot see until they surface in your data.) My “Journal” is the day-by-day events of my life. There’s some overlap with Worklog, but it’s more a record of my reactions to life events; it’s the affective part of my life. And my “Summary” is a week-by-week summary of both Worklog and Journal. I fill out the Summary each Sunday morning when I sit down to read over what happened this week, and where this next week has to go.