I stumbled on this nifty business idea, Nanny in the Clouds, to create a market in the air for nannies. Think match.com, but for wanna-be-nannies and parents on airplanes.
A clear market failure: people on flights with kids want some help; other people on flights want to make some money taking care of kids. Social norms don’t really allow for instantaneous markets to appear (“hey, for $10 I’ll watch your kid for the next two hours so that you can take a nap” is unlikely to get many takers, I suspect). But prearranged, where the norm adheres to our expectations in the babysitter market, and we have a market helping make trades otherwise not made.
Here is how it works: Sign up on the website, put in the flight you’re going to take, and see if any parents (nannies) signed up and are looking for a nanny (parent who wants a nanny) on the same flight. Negotiate your rates directly, and pay Nanny in the Clouds $10 if the match is made.