Here is a great way to pracite major scale pos or any other scale.
This way you not only practice the postions and how to cross between them fluently but also practice very basic rhythm patterns.
 Make sure you pracite with a drum machine or a metrone , start with a slow bpm and climb from there.

Here is a fun string skipping guitar exc.
It's based on the lovely Pentatonic Scale with the b5 sometime called the blues scale.
Try to use legato technic  (hammer on and pull off) for a smoother feel.

In this guitar exc we will try to spice up a Major scale pratice by harmonizing each degree.
The intervals we will use are the minor and the major 6th.
Try to come up with some cool ideas using this method it is worth the practice.