When we went last July, I was determined to get a good price on the misty mate which I never did and consequently, ran out of time to buy one. We were at WDW in July and maybe because I live in the Houston area (although I'm not outdoors a lot in the summer)-it didn't seem that hot. When we did get hot, we hit an indoor attraction or food court. Personally, I think that carrying around the misty mate would be more trouble and make a person even more tired, but that's my own opinion. Enjoy the trip whatever you choose.