RSI-Stochastic Hybrid

This is a very simple idea - an average of RSI and the Stochastic Oscillator. However it offers plenty of flexibility for tuning to your requirements. You can change the lengths of either indicator and the weighting of each. By default it's set to 50/50 (just change the percent RSI to adjust). There is also an optional EMA which can be used as a signal line.
This idea comes from Greg Morris who likes to use it for trend following. I would buy when the indicator hits the overbought line and sell when it goes below 50.