I would invest in gold. No hassle. No risk since every country is printing money and putting savers at risk. Doubled in price in dollar in two years thus far.
Every piece of gold every minted is still sitting around somewhere, there is no reason tomorrow it won't be back down to $400/oz. Gold is just a measurement of fear and confidence in governments/currencies. If you really think governments/FIAT currencies are going to fail you might as well by SPAM and canned goods because they're going to be a hell of a lot more valuable during a true depression than some shiny metal.
I'd sooner get bitcoins than gold. =P No risk since there's no government involved.~ Doubled multiple times in the last several months. (Recently halved a time or two though. :( ) No middle-men or scammy "buy all your gold here and then we'll go out of business and you'll never get it back!" businesses if you just want to mine everything.
That's a peculiar sense of "safe". The value of gold fluctuates substantially over time, even over fairly short periods of time. Sometimes (like the last decade) it goes up; other times (like most of the 1980s and some of the 1990s) it goes down. It's easy to lose half of what you invested; if you time it right, you can lose seven-eighths.
The peculiar sense in which gold is "safe" is that it tends to go down just as much as it goes up; that is, it isn't subject to secular inflation or deflation.