I've heard those described as "to-done lists", and yes, they're very useful.
I've found pre-commitment to n more indulgences generally fails if the cost to one more indulgence is sufficiently low. The only workable solution I've found is forcible pre-commitment to zero more indulgences. In the case of a directory filled with Robot Chicken episodes, closing the window on that directory when I resolve to not watch any more has proven to be very effective.
This is the public group instrumental rationality diary for July 1-15.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
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