I'd love for glass jars to be way more of a thing. Or even cardboard, as much as possible.
The devil's advocate against glass is that it might be too heavy (which, well, that's why we have carts, and most cities are so unwalkable that most people aren't carrying them home in their hands). A really pushy plastic lobbyist could probably try some "Think of the children" take against broken jars, but some brands might be into the premium look of glass for their products.
But cardboard seems like the best thing. We don't actually recycle enough of our paper, and having a stand of flat boxes that you can quickly put together with the same capacity as those fruit/vegetable bags could be another step forward. They can even replace the foam/plastic wrap packaging by just popping the top flap open to see the green beans inside or whatever. And aren't we trying to boost our paper manufacturing industry in Canada? There ya go - it's cardboard time
nimbool