We all know at least one person (and it could be ourselves) who is prone to frivolous spending. He or she forks over hundreds of dollars during each visit to a mall or restaurant, adding to an already massive heap of credit card debt. What's worse, the person makes a habit of asking friends or relatives for money. What, then, causes this seemingly uncontrollable compulsion to spend? For a lot of us, it's tied to our self-image and self-esteem. Many people depend on shopping and consumer products for a "pick-me-up" -- much like getting their afternoon coffee fix. Consumers use material possessions to enhance their image -- walking around with that Coach purse or in those Jimmy Choos can greatly boost feelings of self-worth and self-confidence. There's nothing wrong with this if done in moderation -- we all deserve to spoil ourselves every once in a while. But once wasteful spending becomes a weekly -- let alone daily -- occurrence, it creates the potential fo...