You’ve saved your money, arranged time off from the daily routine, and arrived by plane, train, or automobile to parts unknown. Okay, maybe not entirely unknown if you’re visiting a friend or your ancestral home, but at the very least you are out of your house. These visits can range in length from a weekend away to a few weeks overseas and are a welcome break. If you play your cards right, don’t act like Goldilocks eating everyone else’s porridge and breaking furniture, and learn how to be …