Few people are driven by routines like MLB players.
Jeremy Affeldt used to be the first Giant into the dugout every night, sipping on a cup of coffee as he watched his teammates file in to warm up. Nick Hundley would come out an hour before a game and sprint into the outfield to get his juices flowing. Hunter Pence will run all the way to the center field wall as he's warming up and embrace it.
Brad Grems, the Giants' equipment manager, has a different way of setting up each starting pitcher's bats and drinks. Madison Bumgarner, for instance, preferred that his cold water bottles were lined up and wrapped in masking tape to soak up the condensation.