As they say, we are what we own, hence just looking at the various objects lying around in a home, we can tell a lot about a family and its values. Direct inferences can be made about religion through objects since objects tend to have a great symbolic value in religion. If we find a prayer rug in the home, we know that the family is Muslim or if we find a small synagogue, we know that the family is Jewish. This is the easy part. More inferences can be made about the family just by looking at other objects. At the first look, if the house has toys scattered all over the place, we can say that this is a house of toddlers. Moreover, if a skateboard is lying on the ground, we can tell that a preteen lives in this house.
If the house sees a lot of partying, we will find that it may have a large ding table. A large ding table is also an indication of how big the family is. Coming to the size of the family, just looking at how big the house is can tell us a lot about the size of the family. Another important inference is one we can make is about the number of people in the house. In Western societies such as that of America, there is almost one car per every person so if we just look at the number of cars standing at the porch of the house, we can have an idea of how many adults live in the house.
These principals of amazing domestic objects to gain an insight into the workings of the household culture also holds great implications for archeological studies where there are numerous instances where objects are found in excavation sites.