Entropy is often interpreted as the degree of disorder or randomness in a system. According to Wikipedia, entropy is governed by the Second Law of Thermodynamics, which states that in a natural thermodynamic process there is an increase in the sum of the entropies of the participating systems (whatever that means).
In practice I think we all find that disorder in our homes tends to increase. Certainly for some years we have only been able to maintain a degree of order in the rest of the house by dumping junk in the attic, in a room which one of our grown-up sons used to have as a bedroom; increasing the order in one part of the system has only been possible by decreasing it in another.
It has now got to the state where we will have to do something about this. Hopefully we can export a lot of our disorder to the tip (thereby increasing the disorder there). Regrettably this process will require a major input of energy - by us. But as we need this room as a guest bedroom within the next few months we can't delay much longer!! :)