Last time I was in Shinjuku (2009) there were actual cigarette police in special uniforms who followed smokers around and publicly chastised or fined them if they littered. I saw 3 salarymen get busted within about 15 minutes. The fact that this system even exists indicates that the Japanese do litter. On the flipside, all the fast food joints had wastebins sorted by garbage type, and I did get death stares when I ac…
Paris would benefit from a cigarette police. Smokers there throw cigarette butts anywhere. Street sweepers deal mostly with cigarettes, and they use a ton of water to sweep it all into the sewers.