If I was the king of the world...

I would require all citizens to have at minimum, one bike outfitted with a basket capable of transporting at least one half-rack of bottled beer.
Such a bike, especially if ugly and not-steal-worthy, is an essential component for all households.
We have this old Fuji outside, under a tarp, at the ready at all times. It's really uncomfortable to ride for more than a mile or two, but it's perfect for quick grocery runs and for hauling our daughter in a trailer.
Many "serious" cyclists only have their 'road' bike and their 'mountain' bike, or maybe their 'rain' bike... typically such a bike requires the usual ritual to ride: suiting up, special shoes, etc. You miss out on a lot of spontaneous riding opportunities when you are required to "gear up." Additionally, a beater with a basket is made way more useful when you put fenders on it. Come to think of it, all bikes are way more useful when you have fenders on it... At the moment, I don't own a bike that doesn't have fenders. Seems like an essential piece of gear that is just crazy to go with out... yet 90% of new road bikes do not have room or eyelets for fenders.
So, if you don't have a beater, spend some time on craigslist or at Goodwill and pick one up... get a wald basket and some fenders and you're ready for a ride at the drop of a hat.