Three separate places I went to at 8 in the morning. Gas station, dunkin' donuts, and then a convenience store. All of them, trash is full. People wonder why they litter in the USA, there's nowhere to throw away trash when you're out. It's unbelievable People can just go to work and choose not to do their job anymore. That people see this and they don't have any problem with it, no interest at all to keep things neat and tidy and clean. Nope.
In Japan it's almost impossible to find a trash can on the streets and yet people don't litter. The problem is the culture centered around consumerism and waste.
Funnily enough that's where I find most of the litter in Japan, like, if you go to any non-main road that goes through a bit of forest, you will see signs threatening fines for littering, with a bunch of trash tossed in that exact area.
I have seen cans, bottles, ACs, TVs, baby car seats, bags, and general household trash. Also found a golf club once that I actually brought home because I thought that it was neat. And this is only along a single stretch of road that is only like 1km long.
So Japan isn't some miracle society that doesn't litter, it's just that they do it someplace that is somewhat out of sight.
Keep up the good fight! I've got several miles of trail cleaned behind my hood, one more major path to go!
Maybe you do this, if not, take a plastic retail bag, fold it over twice, while pressing the air out, roll it up tight and rubber band it. I always have 2-4 highly compact bags.
With respect to Japan, there's definitely a culture difference, but I don't think it's the consumerism/waste culture. There's so much excess packaging in Japanese food products.
Smaller portions creates exponentially less waste. It also isn't frequently greasy western fast food waste that is inconvenient to carry around for any period of time.
Like I wouldn't mind carrying around a paper wrapper from a nice sandwich place, but fast food waste is greasy and likely to leak.
Larger portions need less wrapping per lb, but more overall packaging than a smaller item. You know, like how more filling requires a bigger tortilla.
You are also missing the point about the multiple, larger, individually packaged parts. Like how one container from a sit down restaurant is less overall trash than a bag of multiple wrappers, ketchup packets, and a cup from fast food.