Trend alert - "Diet Betting". Co-workers and friends use money as motivation to lose weight. Nobody likes to lose any of their hard earned cash, and the idea around diet bets is that you have to pay if someone else loses more weight than you. One girl called in and said they have a huge ring of diet betters where she works and they base it on BMI. Whoever loses the most is paid $10.00 from every one else in the ring. That's a nice chunk of money towards a new wardrobe! There are goal setting websites that uses money as motivation like stickk.com.