[cookiedibs]

I just came back from Structure House, a residential weight loss treatment program (like the Duke Program) in North Carolina. After 30 years of monitoring people who are losing weight, they recommend weighing yourself everyday. You are correct, there will be fluctuations - but that's normal. If you chart your weight, you will still see that with water fluctuations, the trend is still down. One of the dieticians there said she was initially surprised to discover that overweight people tend to weigh themselves far less than normal weight people. All that being said, everyone needs to do what works for them. I weigh and chart my weight, because it helps keep me focused.
Also, studies have shown that water does not actually make you less hungry. It does not target the same "receptors" (my words) that food does, so it does nothing physically for satiety. However, if you feel it works for you, then keep doing it!