My good friend and colleague Jock MacNeish has recently written a short article about effortlessness. He describes the scene of an old solo sailor manoeuvring his way out of a Flemish seaport.
Jock describes the important role that practice and experience have in enabling people to work out the best way to do what they are doing. I'd also add an openness to learning because without that you won't keep looking for better and more effortless ways to do what you are doing.
You can read all of Jock's article here.
What would you add?