On the one hand, one must possess extraordinary thinking and the ability to invent. On the other hand, we must know the psychology and the purpose of going to hide from anyone.
We sincerely hope that in fact you have a very good family, and the nest egg problem is a purely academic interest. But as they say, life is all ... Let's see what and where to hid mankind throughout the centuries of its history.
So each of us has ever tried to hide a thing from others. Kids love to hide toys, and "secrets" in the caches during the games. Adults want to have some place where you can store money, valuables, letters, photographs, documents, and sometimes larger items. It happens that in this case invented such caches are envied by other intelligence agencies.

