Every morning, before you get out of bed -- rub your tummy with your fist, not too hard, gently, but make an impression, only for about 10 seconds. It may take two mornings of rubbing, but you'll never be constipated again.
Make sure if you rub your stomache that you do it in a clockwise motion. Rubbing counter clockwise can result in increased constipation and can cause problems with your intestines.