L’masaav, on his journeys, implies that Avraham Avinu took a specific, planned itinerary. It was not a haphazard trip. Chazal teach that our Patriarch lodged in the same places that hosted him on his original trip to Egypt. Our sages derive a lesson in mentchlichkeit, human decency, proper etiquette, from this idea. One should stick to his usual lodgings. There is no reason, –nor is it appropriate – to switch from one’s customary lodgings unless he has suffered harassment and anguish there. Otherwise, he inadvertently gives the impression that he was displeased with his lodgings, which could cause a financial…