Shorter days are coming. That means it may be dark (or getting dark) when I leave work.
So, I did a quick search through the Commuting forum and the Light selection guide thread and only found a few posts about helmet mounted blinkies.
A big thanks to mechBgon for his suggestion about the Planet Bike Brt 3H. Looks promising.
Who else makes a good (bright) blinkie for the helmet?