It is interesting what I have learned while riding my bicycle. I knew that people are willing to take risks when in a hurry, cutting people off, speeding, and swerving in and out of lanes. The dynamics are different when you are on a bicycle. I no longer have a ton of metal and glass between me and that speeding swerving car. People are taking risks with my life so that they can get to work 1 minute faster. In truth there is only one part of my route that is a problem and I don't think that there is an alternate that is better. Fortunately it only lasts for about a block.
But here is a friendly reminder from a bicycle commuter. If you are passing somebody on a bicycle, be considerate and give them lots of room. If you don't have room to pass them, wait until you do. And for those of you interested in bicycle commuting it is an easy thing to start and they are plenty of good resources about it on the internet.