Weight loss contest

Tammy and I are having a weight loss contest.  We are going to (attempt) to put $100 back per month, and whoever loses the most weight by January 1st wins the money.  We started this adventure last week; and we are pretty even right now.  I want to lose more pounds than she does......as I have gained 20 lbs since we have moved back home (eek) and she has been losing since then.  So..this will be interesting in our house..may the most will-powered woman win :)