Exchange FRN denominated assets for tangible stores of wealth that have no counterparty risk. (Au & Ag) Then bury it. Seriously. This way it is outside your house and away from your family but where only you and one other trustworthy person know about.
Or cut a hole in the drywall, shove in a couple ounces, patch the drywall and forget it.
Safes scream "valuable stuff in here!" Obviously you want to have firearms locked up but diversify where you keep valuable items.