I'm going to get a dust mask, but I've got a kaffiyeh (just learned that's the non-religious name; religious name is shemagh) which works great - wore it when I was doing some archaeological work in the desert near the dead sea. Think Lawrence of Arabia. If I can't find goggles that fit over my glasses I'll get a ski mask - after all, I'm not too worried about fashion!
why don't you drive down and join in the fun, kerry?