[northwind]

"Another point to mention is that when you stop riding .... take the goggles away from your head as they will steam up "

Yep! Watching people put their goggles on then stand in the queue for race starts is quite funny, by the time they get to the line they're blind. Even better is pulling them down over the vent on the front of the helmet, that mists them up double fast. Mine are pretty damn good (Oakley Crowbars) but they'll still mist up if you provoke them.

Keep them dry if it's raining too, water inside the goggles is a good way to steam them up. Stick under your jersey while pushing up/standing around.