First of all don't put all your eggs in the same basket.
Buy the rips and sell the peaks.
Very simple, not?
But how can one predict the right market direction?
Stock Market Forecast is 'Gut Feeling' Challengehttp://seekingalpha.com/article/1499932-stock-mark
Check also I Know First (the article authors) Sample Portfolio Returns 46.27% In Past 10 Months http://iknowfirst.com/sample-portfolio-return-1-month