[hedzeppelin]

Ok, I'm looking for some new licks.
If I'm playing a blues ditty in a major key (I, IV, V progression), I currently use the blues scale (pentatonic minor) and the pentatonic major (I) and when the chord changes to the IV, I can stay on the blues scale, and or play the IV pentatonic (major). Same deal when the chord changes to the V.
For example, Key of A:
I - A blues & A pentatonic
IV - A blues & A pentatonic and D pentatonic
V - A blues & A pentatonic and E pentatonic

Are there any other scales (besides the major scale) that I can use in this type of progression?

Thanks!