None. I can't stand ice cold drinks, except beer and root beer floats, and I usually put a mug or two in the freezer to make for both. Iced drinks make you drink them slower.
if im at a fast food joint where you pour your own soda from the machine thingy i get about half a cube which cools off the drink without watering it down. but if im drinking a glass of water i wont use ice because ice is water and, so, ..........ya
