Bread and Water

Super Sox Box Swap contest question: What is your favorite beverage and snack while knitting, and why?

When I knit, I like to have bread and water as a snack, except without the bread. So it is just plain old water. I choose water over other (far more delicious) beverages mainly for it's calorie free properties, and also because if I drink wine the whole time I knit, then I will end up with very wonky knitted items...