I'm here in Houston, TX where it usually gets in the high 90's and will stay that way for the next couple of months. I have lived here all my life and even though I should be used to it I'm still seeking the AC every chance I get.
I feel for you having to work out in the heat. I found these little kerchef's at Walmart that you soak in water and then refrigerate, it has somekind of stuff in it that chills. When you want to stay cool just take it out of the fridge and put around your neck. It really cools you off but only lasts about 30 minutes out in the heat. I use them when I mow the yard. Here's a pic.