I’d be careful with currency trading. It might seem like an okay thing to do now since the dollar has been taking a beating, but nearly all the western governments have been on the dole with bailouts, stimulus, etc... It’s not a case where our government is the only one with spending and debt problems.
I know some people who tried the British pound and ended up getting a nice haircut.
If you want to hedge against inflation, metals might be the better way to go. If you think gold is bid up too high, you could always go for platinum or silver.
if banks close are safty deposit boxes confiscated?