I'll be using a bike for everything, since my license is gone. I got me a cool bike, and a cool helmet, sweep xc. I wonder if there is anything I could wear underneath the helmet to prevent it from smelling sweat.
In drag racing, you'd wear a fire cup, or balaclava underneath the helmet. Protects from fire and sweat smell.
Another thing. I checked out bike messenger videos on youtube, and was impressed. How fast were they going?