Start your day listening to a wonderful song. Many a times it happens the song which you hear after you wake up, you keep humming this song throughout the day. Whenever you take a pause from your routine work, you will start humming the song which you have listened in the morning. This is observed everywhere. A practice which can be followed to get relieved from stress. Most of the times when I travel and if I am alone, I have to do this to entertain myself.