Good Luck to you Anna!!!
I have that same horrible habit, and everyone I work with and my husband do too, so I can totally imagine how hard it is for you.
I really like the money idea--you will be amazed at how much you are saving!!! And, when my cousin quit, she got on the treadmill every time she got a craving. At first, she could hardly breathe on it, but now after 3 kids, she looks amazing!!!!
Good luck again!!!!