One trick that i learned which got me a bit further out of the box was to mix major and minor pentatonics in songs that are compatible. Basically you could be playing in A minor penta and then mix in 3 frets down the same pattern but it has now shifted to major. So, for example i might be playing in pattern 1 (E pattern), than shift down playing pattern 5(G pattern), but then slip into pattern one there also wihch is just the A major pentatonic. It sounds pretty cool and mixes it up. Does not work in all songs however.