For me, it kind of happened naturally. I didn't make any extravagant, executive decision to give up soda, but eventually I just got tired of it and cut it out. It always made my stomach feel weird anyways, probably the carbonation or something. Every now and then I'll get a craving for Diet Coke and give in, but I'm pretty good at denying it most of the time. My next challenge is cutting out coffee. My mornings consist of way too many of those. That's the real kicker. So what's your last thing you gave up? What makes you give in sometimes?