For many years I lived out in the western Colorado desert. Triple digit temps was the norm. So no air conditioning and lived in a trailer. Here is a simple way to cope with the heat. Take two or three ice cubes and roll them up in a wash cloth. Lay the rolled up wash cloth along the back of the neck letting the ends dangle down the front of your shoulders. You will be cool no matter what the temp. It works the same as the cool scarves, except that was before the crystals were available. It is cheap and easy and easy to replace when the ice cubes melt. I even used a cotton scarf with ice cubes to tie on my dog's neck, he was a malamute/timber wolf cross so you see he had lots of hair and did not like the heat at all. He did like the "cool scarf" I made him though.