I am 71 and drink at least 60 ounces of iced tea daily. Tea is a diuretic as well. I am 4 weeks post-RP and my incontinence is pretty darn good. The first two weeks it wasn't good. But I have been faithfully doing the kegel exercises 3-4x times a day, which has helped. I haven't had any alcohol so I cannot speak to that. However, I would think coffee and tea would have the same effect on the bladder. The other thing I learned: urinate often!! Even if your bladder isn't calling on you to empty it, for the weeks/months after surgery go every 30-45 minutes. I know it's a PITA, but it has helped me greatly.