Find someone dumb enough to pay you 1 cent on the first day of a programming project, 2 cents on the second, day, 4 cents on the third, and so on, doubling the amount every day. Then drag the project out by blaming it on scope creep like we always do
Organizing and reorganizing files into folders by type and first letter. Oh sorry, I thought you asked about the lowest leverage activity. Not that I ever do that.