Take a moment now, to look closely at your helmet's visor or faceshield. Can you remember that last time you lathered up your hands and gently scrubbed it clean with your palms? Can you remember taking a cloth and wiping off the bits of the mechanism that help the thing go up and down? No? Well, take a good long look. If it's scratched, doesn't work or is usually flipped all the way over to the back of your helmet, you probably need to think about replacing it. So, think about it.