I designed and programmed No Shave November in just one day, and it became an instant hit around the office. For the month of November, nine guys at The Johnson Group (my former agency) stopped shaving to raise money for Habitat for Humanity. The Facebook app allowed people to pledge $ and vote on who they thought would win. I updated the tally every morning with a bunch of giddy, hairy guys surrounding my desk. (And we raised a good bit of money too!)