What are good ways to protect your savings in a devaluation of the US dollar?

Reminiscent of the movie Barb Wire in negotiating the reward and asked that currency and in Canadian dollars. The U.S. dollar can devalue, devaluation of the currency of nations is a common trick to encourage people to buy domestic goods and people stop buying imported products and to stimulate the economy and jobs as domestic firms more competitive on the world market, but overall it is a strategy that is effective only for smaller countries.
 
U.S. is the largest economy in the world of rich
 
And therefore, the devaluation has fewer benefits to the U.S. after being abroad. If your expenses are mostly in the domestic products to buy Washington State apples, not from Chile and buy watermelons from California or Texas instead of from Mexico, then you have little to fear a devaluation of the currency but if you buy are from foreign countries, then the costs will rise.
 
This can be a good time
 
To check if most of your expenses are domestic or foreign. As for the protection of their investments from one currency devaluation, the products can help, but there is little intrinsic value in something like gold, investing in foreign companies can help and of course there are foreign bonds.
 
Moreover,
 
As Warren Buffet says, do not bet against America. Also the quote from Winston Churchill, "Americans can always be counted on to do the right thing ... after they have exhausted all other possibilities" .. It may take a while, but everything goes by itself.