I smuggle twist-ties into the UK. Though I really like those plastic clippy things we have. I don't know where they come from. We seem to have a supply.
For bread, though, we usually buy unsliced Hovis loaves from the bakery. Which is nice, yes, but they come in a paper bag. And then we're under tremendous performance anxiety to eat it before it goes stale. Like, "oh, we better not have tea out. It would be a shame to waste that lovely Hovis!"
Feh. There will come a time when Hoviseses get put in plastic bags, mark my words. If not frozen.
And shoot, y'all...it's the minutiae of cultural differences that are the most fun. The big stuff you could learn staying home watching Masterpiece Theater. Twist-ties versus tape is something you have live through for yourself.