I have always just hovered around the major and minor Pentatonic scale. After posing a question, of "what would you add to your rig when its time to break open the Piggybank" one gent recommended lessons. So that's what I did. and here is my home work.
The pic shows the relationship of the modes to the major scale. According to this "trick." all you need to do to play modes, is to start the mode you wanting to play from the corresponding Number and follow it through.
E.g. if I play No.3 this would be starting on the E and would make up the Phrygian mode, making up the Em7 but still in the context of C major. I never understood the idea of modes but this instantly started making sense to me.
I'm guessing there is heaps more to this as I'm only scraping the surface here, so before all you knowledgeable people jump down my throat just take it from where it comes. And if this is wrong please share.