I live in an area where we hardly have humid days or extreme high temps during the summer. I bought a neat cooling towel from Amazon (Frogg Togg) that says stays cool for hours and you don't feel wet from it since it is rubber like instead of a wet towel! What else do you folks in Hot and Humid climates recommend for me as a traveler to buy now to bring along for when we are of course outside most of the day seeing things? I plan on a water bottle filled with ice too... what else from a store? Thank you in advance!