Easily one of the scariest, most interesting and OCD-y things anyone does, Nicholas Felton has released his annual report, which tracks everything he does in a given year. He’s been doing this since 2005 (Feltron is selling copies of the 2009 report letterpressed on French Durotone paper. The print run is limited to 2000 copies, so act fast).
Besides the usual monotonous ephemera the report includes (things like total number of cheese varietals consumed, movies discussed, etc.), Felton had his friends, family and any person with whom he had a meaningful encounter report data on their interactions with him.