- Strengthen bonds with family and friends. Pay for a plane ticket to visit your brother’s new baby, go to your college reunion, or throw a Super Bowl party.
- End marital conflict. If you and your spouse are constantly arguing about the unkempt lawn or the moldering laundry, see if you can throw some money at the problem, if possible. Can you hire the teenager down the street to clean out the garage?
- Upgrade your exercise. Studies show that one of the quickest and surest ways to boost your mood is to exercise. If spending money on a more convenient gym or new yoga pants will make it easier to get yourself off the couch, that’s a good happiness investment.