Make sure you say the greeting of Salam when you enter your, or anyone else’s, house. Some of the benefits are as great as Paradise, provision in this world and Allah’s blessings.
The Prophet (peace be upon him) said, “There are three who are under the protection of Allah and if he lives, he will be provided for and it will be sufficient for him, and if he dies, Allah will enter him into Paradise: Whoever enters his house and gives the Salam; whoever goes out to the mosque; and whoever leaves in the way of Allah.” (Abu Dawood; authenticated by Al-Albani)
Allah says in the Qur’an:
“When you enter houses, give greetings of peace upon each other – a greeting from Allah, blessed and good.” (Qur’an, 24:61)
In Fiqh Al-Ad’iyah wal Adhkar, Imam As-Sa’di said, “The word ‘houses’ (Buyoot) is indefinite, so it includes any house that you enter and not just our own, even if there is no one present at the time. (The words) ‘upon yourselves’ (Alaa Anfusikum) means to give Salam to one another. The words are used to show that Muslims are like one entity due to their mutual care, love, and mercy. Then Allah praises this greeting by saying, “a greeting from Allah, blessed and good.” The greeting is to say: As-Salamu Alaykum wa Rahmatullahi wa Barakatuhu.
‘From Allah’, means that He has ordained it for you and has made it your greeting. It is ‘blessed’ because it is a Du’a that includes peace, safety, seeking blessings, mercy, and an increase in goodness. It is Tayyibah (good) because it is good speech from the One who is Good (At-Tayyib).”
Also, Anas narrated that the Prophet (peace be upon him) said to him, “Dear son, when you enter your house, say As-Salamu Alaykum to your family, for it will be a blessing (Barakah) both to you and to your family.” (Al-Tirmidhi; Hasan according to Al-Albani)