Same goes for Singapore. Crime to littler and also the culture there values cleanliness of the city. When I was there I almost never saw trash on the ground, ever. I once saw a plastic cup get blown off some lady's table and the next person who was working on the street who saw it picked it up and tossed it in the trash bin. Public trash bins are everywhere. Absolutely a world-class city in every sense of it.

From an individual's point of view: they also fine you up to $5,000 and give you community service if you get caught littering.