How does things work

For example garbage. One container is biological waste. This is easy. Another one is for paper like newspapers, third one for paper like cartons and juice and milk cartons and other paper packages. But what to do with metal cans? What to do with glass and plastic? Bottles both plastic and glass you can return and get cash back. Others you should take with you and go to the closest place where there is several containers for different sort of garbage. Things, which are outside of all the above categories you can just throw away to a general container. What are those things? For example used diapers, other kind of plastic (and this is already not that clear for me). Well, if you think it makes too much effort to follow those rules, you must be not from Helsinki. Today - Sunday - we went for a walk to look for those containers. There were several people emptying their bags and sorting thoroughly all the waste they brought with them: glass here, plastic bags there, old clothes there etc. 

That means well organized society.