To earn miles, you must be prepared to play the ‘miles’ game. And you need at least one good credit card. I recently boarded a flight from Singapore to Amsterdam en route to Romania. As always I was flying Singapore Airlines, my first choice of airlines. At the time of check-in, I requested the SQ staff if I could get the single window Business class seat and she smiled back letting me know I had already selected it. I then thought to myself, when did I actually reserve the seat?