JC, the ups and downs that make the news are the average of everything, (you probably already know this but I have to post the thought )
with the right investments you can make money no matter what the average does.
Look back to the Great Depression, stuff like food will be the last thing to fall, energy stocks, things people have got to have.
Emerging technologies bought now cheap will pay off in the future, strong, established firms like Coke, or Microsoft.
Yes, their share price may drop to where they are actually affordable, but not as much as the market as a whole, and they will be among the first to recover.
There is also currency speculation.