Good question....

I'm a wergin burner, but I've worked and lived and played in dry, dusty and hot places most of my life.

A couple of things that I've seen or used in other places that I haven't see many pictures of on the playa are:
Capes - great for hot and dusty cause you can wrap them if you get cold or dusty, and then open them up totally when it is gone.
Headgear - turbans, shawls and headcovers keep dust out of your hair, ears and neck. And they are dead easy to make.
Gaitors - Useful for deep snow, but also for deep sand or dust. Keeps the stuff from running down your boots.
Dust Saw - Sometimes it gets so thick that the best way to deal with it is to cut it into chunks and stack them. (Same idea as a bullshit saw)

I'm guessing that bugs and critters aren't a problem, otherwise there is a ton of other critter related stuff that would be useful.

Cheers