Triple Bollinger BandsTriple Bollinger Bands by Karl Kondracki
Hopefully this script can be of use.
Personally I really enjoy the reliability of Bollinger Bands set to a longer moving average.
Adding two extra deviation settings on the set of bands with the longer ma setting helps to easily show trends.
I tried to make the set as easy to see without drawing attention from other information.
The settings are intended to be as adjustable as possible while keeping things basic.