I too, cut back on fluids & paid the price with uninary tract infections. One doctor (the only one I've been to who seems to know what he's doing & what he recommends). First, he says the nummber of glasses one drinks a day is not a rule written in stone -- 8 is not a magic number...some people need more; others don't need that many (according to him, & I think it's a decent guideline). I've seen this in articles elsewehere. Drink enough to stay hydrated - you can tell by the color of your urine (light yellow) - also, try to stop drinking 8 oz. glasses 2 hours before going to bed, if possible. Then drink up in the morning (I drink 16 - 24 oz. -- NOT ALL AT ONCE) (several hours before going out, if possible). Then I try to fill up the 'ole tank by drinking 16 - 24 more oz.(again, not all at once) when I get home. I think tea can substitute for plain water -- however, beware of caffeine - stimulates the bladder - (just what we need).