It's a given fact that being in close quarters with hundreds of people, plus limited A/C, plus wearing a hot costume can lead to a very uncomfortable amount of heat. And I have heard a lot about how hot it is in the Portland summer. Basically my costume has many "layers" and is made of some very heavy fabrics. Which is an issue because I tend to overheat easily and start sweating like crazy the moment I have more than one layer on. Therefore, here is a thread to offer your tips, tricks, suggestions, and generally complain about how hot you were last year. It's all good.
For this particular endeavor, I'll try to have something light on underneath, so I don't sweat all over the nice material. Wet costume is ew.
Frozen water bottle, one of those cooling gel neckties, maybe one of those little tiny fans.. I implore you, add to this list.