Whether it's by pounds lost, # of veggie servings a day, # of times exercised in a month, # of times you resisted the urge to splurge....
What is your system?
My Hubby and I came up with one for my weightloss.
I would like to lose about 120-130 lbs, so the reward is for every 5lbs lost we would put $20 aside and that would go into a special "piggy bank". When I get to goal weight then I have a fund to buy myself a new wardrobe as a reward! I LOVE shopping...the idea that I will have a budget that won't break the bank as a reward for getting to my goal is exhilarating!