Jack Off Journal
A dirty little book that guys use to write down all their self-pleasure sessions. It has the date, how it felt, and how much cum he released.
'January 1st: Took 5 minutes. Got a 10. My brain was exploding.'
'March 20th: Did it in the car. Got a 6. My car was ruined.'
'November 30th: Slept through it. Got a 3. My brain was dead.'