Biggest Loser

I want to be the biggest loser!  At work, a lot of people have been talking about wanting to lose weight and get into shape, so we have decided to hold our own "biggest loser" competition.  Everyone is throwing some money into the pot and whoever loses the most weight (by percentage of what they started with, if that makes sense) in six weeks gets the pot.  Tomorrow is the first weigh in day (that I'm not looking forward to), so Friday everyone brought tons of junk to "binge" on before the competition starts.  Don't worry- I didn't give in to that!  I would have been sick for sure, but it was funny hearing everyone talk about it.  I am really excited for this!  I think this will help motivate me to get into shape- I always love money!  So, do yo have any tips and tricks for me to help me win?