Sweat
Yesterday, riding up to the races in Highbridge, NJ, it was hot. And humid. At one point, doing a course pre-ride with club memebers, I was blinded by sweat. I've got a Bell X-Ray helmet, and when I tilt my head down, a rivulet of burning sweat runs into my right eye. When I take off my helmet, I can squeeze out about a tablespoon of sweat from the small pad that rests on my forehead. And I'm not a big-time sweater, just normal. In addition to just being nasty, it's a real safety hazard. I wear Adidas Evil-Eye glasses with prescription inserts. Between my eye burning, and the salt residue on the insert and external lens, I'm a mess.
I've searched the threads, and several people recommend helmet liners and the doo-rag dealies with the tail that runs down your neck (a-la-Pirata). What works best for most people? It seems that with the liner with the tail, you could squeeze out the tail periodically, and promote moisture movement towards the back of the cloth and down your neck.