The Pain and Pleasure Principle

Paying by cash or finding another way to emphasize the real, material cost of a purchase can help create good spending habits. gpointstudio/Shutterstock

I don’t care much for pain. In fact, I'll do almost anything to avoid it. I also know that pain can be a good thing.

The human nervous system triggers a sensation of pain to stop us from doing something that might cause a severe injury and to let us know that something may be wrong.