Have a simple graph on the profile page showing how many minutes the user spent on HN each day in the past week and/or a number on the top panel showing minutes

Have a simple graph on the profile page showing how many minutes the user spent on HN each day in the past week and/or a number on the top panel showing minutes spent on HN over last 24 hours. I find that just measuring something is a far more powerful way to improve my habits. I am far more likely to set noprocrast=1 if I realize I spent 3 hours on HN yesterday. Edit: Just realized Zev had posted the same idea a while back.