Start a humorous tee shirt collection. Just like athletes at international soccer matches, exchange fun tee shirts with others. Wear these tee shirts to exercise your sense of humor when you are exercising. The next time you're going on a business trip alone, leave a joke or cartoon on your spouse's pillow. To help your family start the day on the light side of the bed, play a particular funny tape or CD to wake them up.
Music amuses and is a fun wake-up call.
Keep joke and cartoon books in your office for others to borrow. It's a fun safety valve and helps to minimize potential isolation. It will remind you to see the humor in each situation. Read the comics every day before the front page, editorials, and local news. Consciously try to find something that gives you an early-morning chuckle.