How To Save San Francisco With Puppies

In entrepreneurship courses around the world one of the first things that they teach you is to find a problem that your business can solve. We all have problems, so there should be plenty of inspiration. And no doubt, there are many successful businesses that start with this simple question in mind. But how often do they ask if the problems they are solving are big enough?

This weekend I read an article about a fascinating experiment in San Francisco to get panhandlers off the street. The cit...