Found in 3 comments on Hacker News
engtech · 2012-10-29 · Original thread
If you like this, you may want to get a copy of the book this evolved in to: "Smart and Gets Things Done"

$3 used, $11.61 new

Not sure if there's an ebook version, searching for a PDF brings up some programmer's blog who looks like he's hosting it illegally by accident.

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