It was my first commute today, also! First day at my new job, too. The morning was fine. There was some not-quite-heavy rain, but I had my rain gear and lights on, and cars gave me plenty of room. I arrived a little disheveled, but certainly presentable. The ride home was fine until I got some people behind me that just laid on the horn and shouted at me for a good while. They eventually passed me, and I gave them a friendly look and a ring of my bell. All in all, though, it was a very positive experience. I'm really looking forward to it.