I made a nice chunk of money off that. No where near as much as I lost a month ago, but I am still up for the year.
I have a huge amount of the money in SWTSX and SWISX, which are broad index mutual funds. SWTSX is basically all American stocks in one fund, and SWISX is almost all foreign stocks in one fund. Of my "standard investments" I have 70% in SWTSX(American stocks), 20% SWISX(foreign stocks), and 10% in SCOXX(basically US Treasury bonds).
Those are long term investments, the stuff I put into the market and forget about. Even if it crashes by 50%, over time it will go up, and besides there is no other place as good to keep your money.
I am being careful about adding to it right now. It does seem ripe for a major correction.