R’ Meir Simcha Hakohen zt”l (Meshech Chochma) would say: “'ויפן פרעה ויבא אל ביתו' - Why did Pharaoh turn to his house and ignore the rest of his people; didn’t he also have a lack of water? The Medrash says that the Egyptians could get water if they would buy it from the Jews. Since Moshe was raised in the house of Pharaoh, that was his way of paying for his water from the Jews, and thus he had water the whole time. That’s why Pharaoh turned to his house and ignored his people; because he had water, and he didn’t care about anyone else.”
A Wise Man would say: “Every day is a journey, and the journey itself is home.”