Short answer: https://www.beeminder.com/illuminosity
Long answer: Anything I want to repeat, with reminders, that is measurable (the enforcement is nice, but actually much less important than the reminders, tracking and ease of entering data for me).
This is the public group instrumental rationality diary for October 1-15.
New this month: If you have preferences about the future frequency of rationality diary posts, please express them in the poll below!
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
Immediate past diary: September 16-30
Rationality diaries archive