Huh. 13th is almost around the corner. I need to set up a small cron job that'll delete my oldest tweet each day from Twitter. Or perhaps the oldest 10... don't want to run the thing for 15 years. Deleting in batches of 10 would still take a year and 7 months.
Perhaps I should time it so it takes 42 weeks... or until the next Friday the 13th?