So after thinking about this a while... I'd like to pitch this:

Name of the program: 5 Days without a Car Challenge. I'm hoping this would particularly appeal to cyclists . We have so many who flock to do centuries, brag about their first overnight bike tour, first winter commute... our challenge could be along similar lines.

The challenge could evolve as a Facebook open group, where seasoned car-free cyclists could pitch ideas (ie, solve the casserole paradox mentioned above...). Cyclists who completed the challenge could post their experiences or show photos. Perhaps we could get an organization like Undriving to help.

Perhaps someone who lurks here might be on a bicycle advocacy committee and include it in their Bike Month package.

On that note, anyone have any refinements? Better way to pitch the challenge? Web sites, organizations would could promote it??