One popular explanation of the hadeeth: "Do not make your houses into graveyards." (Muslim Shareef, Vol 1, Pg 265) is that one should make it a habit of performing nafl salaah at home.

Another explanation is that one should feed the guests that come home. Guests should not leave one’s home without partaking of anything in the manner that one returns from the graveyard. One should at least offer them something to eat or drink.

Extracted from Malfoozaat of Mufti Mahmood Hasan Gangohi (rahmatullah alayhi)