Stop doing dumb stuff. It's all of the little mistakes that add up.
Careless errors cost consumers billions of dollars each year, experts agree.
Admittedly, each mistake is likely to nick you just a small amount. But repeat that mistake over and over, and you're losing a small fortune. This is not about cutting down on restaurant meals or shopping sprees, or about saving more or paying down your credit cards. If you do, cut it out. Then save the money you're no longer wasting.