I dont mean thing like less salt / sugar / fat in foods or a complete rethink of a design just little things that would make them better / easier to use.
For me it is ;
Cheese I wish it was produced in square blocks so that one or two slices would be enough to fill a round of bread instead of about eight narrow slices. Some supermarkets sell their own in larger blocks but they tend to be the size of a house brick and not strong enough taste for my liking .
Clam shell packing , just NO , stop using it its to bloody hard to open and we don't need more plastic in this world .
Resealable packing , not the zip-lock type but the ones that have sticky tags that are meant to keep to keep the pack closed - they just don't work , yes I know I can decant stuff into containers or buy them clippy things but they could also put more sticky stuff on the tag.
What would you like to see changed ?