I give them three feet and generally avoid moving over to the centerline where all the road grit and debris accumulates. One of my pet peeves is people who move all the way into opposing traffic to put a car width between them and a bicyclist. Giving a bike three feet versus causing other motorists to brake hard to avoid a collision. Seems like a no-brainer to me.
I got a sidecar to travel with my dog. He never complains, is delighted to be with me, approves of my dietary choices, is a social butterfly who helps me meet folks, appreciates a good beer, snuggles better than my wife, and hangs on my every word as if it's the most profound thing he's ever heard. TravelsWithBarley.com