The subway positioning thing is kind of stupid, because I mean you are going to have to walk the distance anyway, right? Either now or when you get off the train. I have begun not getting on the perfect transfer cars because EVERYBODY knows about it already and those cars are jam packed. For my morning commute it is comical how crowded the "perfect transfer" cars are compared to the rest.
When the shoeshine boy offers you a stock tip, sell the market.