Yoga based warm-up exercise

The following is a short series of Yoga exercises that can be performed before any activity. For example, I am using it every time I go to the gym (either on my cardio or weight lifting days). Just don't tell anybody. Let's keep it between you and me. Very similar exercises are used in Aikido Dojos I had a pleasure to visit.

Sit on the floor with crossed legs.

1. Neck bending (up and down)
   a. Bend your head back. Inhale.
   b. Bend your head forward. Exhale.
   c. Repeat 3 times.
2. Neck twists (side to side)   a. Turn your head 90 degrees to the left. Hold.
   b. Turn back to look straight ahead. Hold.
3. Neck bending (ear to shoulder)
   
   a. Lower your right ear down towards your right shoulder.
       Hold. Relax the left side of your neck.
   b. Return upright.
   c. Repeat on the other side.
4. Head rotation
   
   a. Look straight ahead.
   b. Turn your head up. Look straight up.
   c. Slowly circle your head to the left. Perform a whole circle 2-3 times.
   d. Return to the original position. Look straight ahead.
   e. Slowly, circle your head to the right. Perform a whole circle 2-3 times.
   f. Return to the original position.
5. The twist
   a. On an exhale, twist to the right, placing your right hand on the arch of your back and your left hand on your right thigh. 
           b. Hold for a few seconds.
   c. Return to the middle.
   d. Repeat on the left side.
6. Shoulder lifts
   a. As you breathe in deeply, lift your shoulders toward your ears.
   b. Exhale and let them fall.
   c. Repeat three times.
7. Shoulder stretch
   
   a. Place your right hand on your left shoulder.
   b. Put your left hand above the elbow of your right arm.
   c. Press on the elbow so the arm goes beyond left shoulder.
   d. Hold for 2-3 breaths.
   e. Repeat on other side.
8. Wrist stretch
   
   a. Put palms of your hands together in front of your chest (as for prayer).
   b. Pressure your left wrist with your right, slightly bending it back.
   c. Hold through 2-3 breaths.
   d. Return to original position.
   e. Pressure your right wrist with your left, slightly bending it back.
   f. Hold through 2-3 breaths.
   g. Return to original position.
9. Wrist Stretch 2
   
   a. Hold up one hand in front of you like you would when saying "stop."
   b. Grab your fingers with your other hand and pull your fingers back gently to provide a stretch to your wrist.
   c. Relax your shoulders, and hold through four breaths.
   d. Turn your hand so that your fingers point downward, and the back of your hand faces away from you.
   e. Take hold of the back of your hand with your other hand and pull gently toward you to stretch the back of your wrist.
   f. Hold for four breaths.
   Repeat both stretches on the other hand.