I manage with a cup every couple of hours, but then my tea mug holds a pint. I drink it black, and relatively weak, the trick being to get the good flavour before the bitter tannins make an appearance. When it's hot I usually drink water, so my options are cold water or hot, slightly-flavoured water.
I have been known to drink coffee but I save that for emergencies and I think it smells way better than it tastes.