Your 401k is worth less today than it was yesterday and worth more than it will be tomorrow...
This is only the beginning.
On the bright side (pun intended), gold and silver will be pulling back over the next 10 days(selling metals to cover margin calls from massive stock market losses) before they rocket back to new highs. Buy gold in the 700s and silver in the 13s at APMEX. US Treasury Bonds and Oil/Energy funds would also be a good idea. But whatever you do, do NOT hold LONG stocks or you will get crushed.
You can also short stocks with great success, shorting anything retail or restaurant is a great idea because let's face it, PEOPLE ARE ESSENTIALLY BROKE AND SLAVES TO THE BANKS WITH DEBT. If you can't short stocks, buy SDS and TWM (these go up when the market goes down as they are reverse traded ultra-shorts of the SP500 and Russ2K index).