1. Get yourself an attitude of gratitude.
For centuries, religious groups the world over have recognized how powerful gratitude is when it comes to lifting one's spirits. Frequently we are so caught up in what we lack that we fail to recognize all that we possess. Often, we are only reminded of the blessings present in our world when we encounter someone worse off than we are or when those blessings are no longer a reality. Be thankful for what you have. Keep a list of things for which you are grateful - in case you need to jog your memory.

2. Brighten someone's day.
It may be you who is feeling the blues, but when you brighten some else's day, yours automatically becomes brighter. Call it the ripple effect. Smiles are contagious. Do what you can to start an epidemic of happy faces.

3. Get organized.
Many experts agree that when you organize things in your life, it makes you feel better about yourself and your circumstances. Clear the clutter lying around your house or yard. Detail your car. Organizing closets, garages and other areas that have become detritus dumping grounds are great places to start.

4. Get some fresh air.
Fresh air revitalizes the senses and makes you more apt to get up and do something rather than sit there in a sullen mood. Go for a walk with a friend. Take a bike ride. Even just puttering in your flower or vegetable garden will do the trick.