Have you heard? It's really goddamned hot outside. Are you unfortunate enough to not have air conditioning? Well, build yourself an AC unit on the cheap to get you through the next couple of days.
All you need is a cooler, a fan, some tubing and a water pump. You basically are just running cool water in front of the fan to cool off the air it's blowing at your sweaty face. Is it as cool as real air conditioning? Probably not. But if you're suffering in the heat, every little bit helps. [Instructables]