Taking profits in strength

With the DOW pushing 10,000 and the S&P500 pushing 1,100, I just have to be tempted to take money off the table. I'm going to be selling into any spurts of strength. To many euphoric posts on cnbc.com about the market rising, little people coming back, plus I am starting to feel anxious that I am missing the rally and want to put more money in... easily a reason to take money out for me. No one has ever gone broke taking a profit.