I think you really need to keep your activity level in mind when you look at how much you are drinking. On days when I am working (as opposed to working out & cycling), I probably drink around 64 ounces between water, herbal tea, diet soda. I also drink decaf coffee and regular tea (yes, I know, bad, but!).

If I add hours of biking, I also add more liquids. The amount is based on both exertion and based on the weather. That is, on hot, hot days I drink a lot more!

--- Denise