There's a new article on Investopedia titled, "Tales From The Trenches: A Simple Bollinger Band Strategy." It's a simple strategy, one in which you buy when the daily candle closes below the lower band and sell when the daily candle closes above the upper band. The strategy looks for the price to make it's way back to the middle line which is just a 20 period SMA. There is nothing new about this strategy but it's simple and he does acknowledge its faults which every strategy has. That is where money management comes in.