Day of Peeing

I have a certain medical procedure this Wednesday that requires me to be on a liquid diet for the two days before the procedure. Today I can have whatever color liquid I would like, but tomorrow, I can only have clear liquids. That limits me to water, Sprite and Vodka on Tuesday. Let the two days solid of liquids and urination begin!
Also, I've already cheated today and had chocolate ice cream. But I let it melt...