Market size: Large (> 10,000,000 people)
Investments required: Small (< US$50,000)
Problem: People are wasting a lot of time waiting for something in airports, railways stations, trains, ariplanes, cafes, etc. There are TV screens at these places, but it's too noisy to hear anything.
Solution: Show inspirational micro-courses on these screens (see an example). People will benefet from them a lot. They'll turn wasted time into personal growth. Revenue will be generated from the sponsors of these micro-courses (see the bottom line of the sample micro-course).