A well-known English proverb says: “My home is my castle”. Really, all the ways are leading to a native house, a place where a person has an opportunity to relax, enjoy the things which he likes, communicate with the dearest and nearest, stay alone or meet friends.
The first guest of the place is a cat

A new house is connected with a new stage in everybody's life. It is like a start of a new life, with the new habits and traditions until the moment when a new house turns to be a real home and the masters do not feel like the guests at it.
But before that people try to fulfill the traditions which are connected with a new place of living. The most common and wide-spread tradition is a custom to let in a cat first. People think that a cat is mystically bound up with evil power. That is why these animals feel negative places in a house and try to avoid them. In the place, which was chosen by a cat, people used to arrange a children corner or set a bed. It is better to pay attention to another theory. Some energy and home improvement specialists are sure that the cats choose the most negative places in a house; that is why think carefully if you are really ready to follow a pet's instincts and devote it your home harmony and well-being.
Of course, all the traditions are just nominal and general. The main things could be very different, but sometimes it is even worthy making the things we do not believe, but "they say that it is worthy doing". Who says? In general, every person just wants a home to be comfortable and warm, cozy and harmonious. That is why all the traditions are carefully cultivated, passed from the generation to the generation.