Another great exercise by Gail and Paul Dennison helps with study skills, math, and riding in a car, bus or plane.

Neck Rolls helps to relax your neck and shoulders.  You can stand or sit while you breathe in deeply and slowly, relaxing your shoulders and dropping your head forward.  Move your head slowly from side to side, in a slow, rolling action.  Imagine breathing out any tension.  As you do this, your chin draws a smooth curve across your chest as your neck relaxes.