If you ever find yourself wanting a cool beverage but unable to get one due to lack of ice or refrigeration, get a clean sock, put your bottle or can inside, and completely submerge the sock in water.
Hang the sock up for 15 minutes. The natural breezes in the air will cool down the item in the sock.
Who knew?!?
For more info, here's a great article: http://www.stripes.com/news/cold-water-in-the-desert-sock-trick-really-works-1.67187
