Hmmm. Not much litter around where I live.
One problem is that we're given so much litter now. When I was a kid you'd take a bag to the shops to buy stuff, they'd never give you one. Nothing was wrapped. If you wanted something to eat you'd go to a caff, nothing was take-away apart from fish and chips, so there were quite a few bits of newspapers lying around and they'd disintegrate in the rain. If you had some surplus furniture, you'd give it to someone, because stuff didn't seem to wear out so much. Plus, if it did you'd fix it. It's not the litterers that's the problem, it's the people who give us the litter!