One simple way to raise your mood is to raise someone else's mood. This is a way to raise your mood that's available to you almost anywhere and almost anytime.
Today is the first Friday in October. And the first Friday of every October is World Smile Day, a celebration created by Harvey Ball, the man who invented the original "smiley face" back in 1963.
To celebrate this day, all you have to do is make someone smile today. And notice how it improves your mood when you do.