Enter or leave your house with your right foot first, as it was the tradition of the Prophet. Imaam Abul Ala Hasan ibn Ahmad al-Hamazani, a great scholar of Hadith of his time, was so keen on applying this Sunnah to the extent that if someone entered his house with their left foot first, he would ask them to go out and re-enter with their right foot first. He was so much respected that the Sultan of the day would visit him at school and sit in front of him as a student. At one occasion, he told the Sultan to exit with his right foot first and walk on the right side of the road.