Knowing a position of the major scale is great but knowing it inside out is when it really becomes useful.

The open chord shapes C, A, G, E and D can be made into bar chords to play the same chord in 5 different positions. Taking the example of C major, you can take the furthest note of the open C chord, build a bar and then build an A shape (using the bar in place of the open strings).

Expand your understanding of the guitar fretboard by practicing the major scale horizontally and exploring the chords hidden within it.