I really only like to drink very cold water. Like 75% a block of ice, and you drink the slushy stuff it's floating in. So I've gotten in the habit of setting a water bottle just outside the front door for a while so it gets really cold. Last night, I left one outside too long, and it froze so solid it split a seam down the middle of the aluminum water bottle:
I guess 6 hours at -12ºF was a bit overkill.