So as every investor knows by now – Thursday was the US stock market’s worst trading day since 2008 with the Dow Jones Industrial average dropping 4.3%. The picture is from Friday morning’s USA today. The red is very appropriate, blood bath that it was! Being a long-term investor, I almost never sell any stocks in my modest portfolio on days like these. But with the troubled US and European economies and debt problems everywhere, even the long term looks pretty bleak. What to do if one has cash? Sit on it? Buy more gold?