Maybe it will be a little motivational if you realize that you hinder weight loss when you don't drink enough water. Also, you will have worse breath because you won't be flushing the ketones out the urinary tract, but out your breath instead.

From the book, Hollywood's Healthiest Diets, p. 86:

"You've heard it a hundred times, but I'll say it again. You must drink enough water. If you are dehydrated, you will not burn fat. End of story. Water is necessary in the process, not only of fat reduction, but every metabolic process as well. If you are not drinking enough water, you will fail. You should be urinating about ten times per day for your fat to remove itself from your body. If you are not in the bathroom more than you think you should be, you are not there often enough. Drink at least eight 12-oz. glasses of water each day."