A Chilly Towel is very helpful in this heat! Amazon.com : Frogg Toggs Chilly Pad Evaporative, Cooling, Snap Towel : Golf Towels : Sports & Outdoors. Keep it wet in it's container and in the fridge for an extremely refreshing wipe for when you walk in from outside. It it even helpful when wet but not refrigerated, like carried in a car. Just snap it, or shake it hard, and it truly is cooler than just a wet rag.

The link is to Amazon but Walmart carries them as well, both in store and online.