learning to play.. (i'm an ear player.. no lessons) my brother taught me the pentatonic minor scale and spent about 10 mins showing me how you could listen to practically any rock/blues/country song and overlay that pattern in there. And with the exception of the progressive stuff, it's still true today.
Just to get a quick start.. if you like to figure things out for yourself, learn the pentatonic minor shape and then learn a pentatonic minor run.. Now, i pretty much can solo anywhere on the board, using segments of the run to get from point a to point b and generally know how the shape morphs as you change positions.. It just kind of grows on you.
A buddy of mine too from a theory based teacher and had great results.. you really need a teacher to learn it that way though IMHO. He learned scales first, then chord theory based on those scales, and he can play just about anything after a year of lessons. and he was 30 like me.. it's hard to learn new stuff the older you get