On yesterday's evening commute i drafted behind a backhoe. It was awesome because i was riding into a strong headwind, i was struggling to do 20kph (slow). The backhoe was wheeled and was doing 40kph. Drafting behind a vehicle like that is better than any tail wind because your usually riding faster than a tail wind anyway... it was awesome. (Although you have to have a death grip on the brakes).
Now this morning's commute introduced a new road hazard: Politicians, or their supporters anyway. I ride through a small town in the midst of a heated mayoral campain and they're taking to the streets, or rather the shoulders to wave at the passing cages. Something else to dodge i guess.