Me neither really, though having many cups without water in between did not help my heart palpiations, but then, my pills weren't working terribly well either at the time.
I put milk and sugar in black teas, unless it's lemon black tea.
I put milk and sugar in select herbal teas.
I drink green and white teas straight.
I use honey when there's nothing else around or when I just darn well feel like it. My favourite thing now is German Rock Sugar from Teavana, since it actually makes the tea taste a little different from regular sugar. Instead of making the tea taste sweet, it takes away the need for sugar. Kinda funny that way.
I've become a sugar snob though. I don't use white sugar anymore. I use Taiko brand stuff, which I can only get at one grocery store chain around here, or raw if I must!