This article has a very interesting take on the subject. And for those that have not seen it live, here is a video:

https://www.youtube.com/watch?v=yHAJ7f0HyjM

As background info: Before this system was introduced, people would simply leave their smelly garbage bags on the street for collection, not a good idea in a hot and windy country.

I was not aware that it also helped to reduce the amount of garbage significantly (as the article describes). That is a very cool side effect - or was this planned?