Are you too busy to stop?  Is your to do list getting longer by the minute?
This is the perfect time give yourself permission to take 5 minutes and rest your mind and body.  Taking these few minutes out of your busy day, will help you feel refreshed and refocused.  This practice will bring yourself back to the present moment and to what is important at this point of your day.  
They do say if you think you are too busy to sit and take 10 minutes out of your day, then you need to sit for an hour...