I am also interested in the "more you drink the more you shrink" debate. I am going for 4 litres a day, more if possible as I am hoping that it will help with weight loss and help my skin too. I am also thinking that it helps compensate for the lack of food, giving me something to do with my hands and mouth, and fills up my stomach.
A realted question: does your body get used to the amount of water you consume and need to pee less? I am peeing like a racehorse, and I was just wondering if my body will adjust to the water intake.