Go to my bank, purchase Swiss Francs, put them in my safe deposit box. OK, so they are not going to make interest sitting in there, but if you stop to think about it, its a pretty good protection from a number of risks, including devaluation of the dollar.

International equities have unhedged currency exposure.

Commodities and hard assets hedge against dollar devaluation.

Currency ETFs also work though have zero expected economic return.