Beer for Free eh; then perhaps you should be aware of the Kimberly Cool concept
Yep, its free and applies specifically to beer: place beer anywhere that will cool it below current
sunny air temperature, e.g. in the fridge, in a wet sock, in a hole dug in the ground, under the vehicle, under a shady tree etc etc etc.
When it has dropped a degree or so, it is Kimberly Cool and ready to drink. The actual number of degrees it has dropped is inversely proportional to one's thirst.
For the those who are not familiar with the Kimberly region of Oz, it can be best described as the hottest and most remote
area in Australia
(in the NW).