I don't understand what a handful of those actually mean. But that aside:
Relating to item number one, I would like to see more cyclists follow the rules of the road (or as we call it over here, the highway code) and stop at red lights, stick to the road (and stay off of sidewalks), etc. And I'd like to see more pedestrians look both ways before stepping off the sidewalk. On top of that, I'd like them actually not expect a cyclist to slow down for them and realize that the cyclist should be treated the same as any other vehicle in the road.
As both a cyclist and a pedestrian, I think learning to commute correctly by whatever your chosen method can go a long way to reducing the friction.