I freeze lots of bottles of spring water. If I'm at home I leave one in just about every room I am active in. If I'm at work, I leave it in a convienient area, (out on the desk, in the cafiteria, or some place you tend to walk by several times.) Any way, as the day proceeds, the ice melts, leaving you a very appitizing bottle of ice cold water, where ever you rome. How can you turn that down?