Found on the Net
First, I just learned that my town has a Critical Mass:
The concept of critical mass is credited to a group of San Francisco bicycle commuters who in 1992 decided to ride home together, according to the Chicago Critical Mass Web site. Since then, groups have sprouted up across the globe and in Kokomo, Indianapolis and Bloomington.
While the rides have the reputation of purposely jamming up traffic, Bohs said that is not the goal here.
"The point is not to upset anyone or cause havoc," he said. "We want to build up safe practices of riding and for cars to think more about us on the roads."
Interesting. I may have to check it out sometime.
Also, I found this picture on Flickr of an "assless bike":
Not sure how practical it is, but it looks sweet.