On days when you think you have no time for yoga, try and do at least one or two rounds of the Sun Salutation. You'll feel the difference.

After downward-facing dog, move into 3 rounds of sun salutations.
Stand facing the direction of the sun with both feet touching. Bring the hands together, palm-to-palm, at the heart.  Inhale and raise the arms upward. Slowly bend backward, stretching arms above the head.  Exhale slowly bending forward, touching the earth with respect until the hands are in line with the feet, head touching knees.
 
Inhale and move the right leg back away from the body in a wide backward step. Keep the hands and feet firmly on the ground, with the left foot between the hands. Raise the head.  While exhaling, bring the left foot together with the right.
 
Keep arms straight, raise the hips and align the head with the arms, forming an upward arch.  Exhale and lower the body to the floor until the feet, knees, hands, chest, and forehead are touching the ground.  Inhale and slowly raise the head and bend backward as much as possible, bending the spine to the maximum
 
While exhaling, bring the left foot together with the right. Keep arms straight, raise the hips and align the head with the arms, forming an upward arch.  Inhale and move the right leg back away from the body in a wide backward step.
 
Keep the hands and feet firmly on the ground, with the left foot between the hands. Raise the head.   Exhale slowly bending forward, touching the earth with respect until the hands are in line with the feet, head touching knees.
 
Inhale and raise the arms upward. Slowly bend backward, stretching arms above the head.  Stand facing the direction of the sun with both feet touching. Bring the hands together, palm-to-palm, at the heart.

The sequence looks something like this: