One of the Ansar (indigenous people of Madinah) once prepared food and sent it to the home of 'Ali ibn Abi Talib (radhi Allahu 'anh). When Ali and Fatimah sat down, Fatimah remembered her father, the Prophet of Allah, and said, "This is such nice food, I wonder if my father has eaten his dinner." Ali immediately went to invite him (salla Allahu 'alayhi wa sallam) over to their home for dinner. Rasul Allah happily accepted the invitation and accompanied Ali home. As he entered the house, he saw that Fatimah (radhi Allahu 'anha) had decorated the house with expensive curtains. He immediately turned around and left. Ali approached him and asked, "Why are you upset, O Rasul Allah? What have we done?" He calmly answered, "It is not permitted for a Messenger of Allah to enter a house which has extravagant decorations!"
Something to consider: If the Prophet were to visit YOUR home today, would he feel comfortable and welcome entering it?