I still think the biggest problem commuting is the moments when you get to work. People stare and ask what am I doing. I have to endure people watching me zip on the leggings of my pants, wash my feet when muddy from my water bottle.
I don't see the sweat thing as a problem anymore. My laptop is now disk less in case i carry it. Traffic is not an issue.
It works better if I play the role of the persecuted humble commuter rather than react to people doing actions that affect my riding.