When was the last time you put yourself at someone else's service? True, it can be a humbling: or even humiliating: experience to do someone else's bidding, but it can also be very rewarding. Find a friend or relative who is overwhelmed by their life right now and let them know that you are there for them. Offer to run errands, help out with babysitting or just listen to them vent their frustrations. You will be surprised by how satisfied you feel.