In Japan individual crackers are typically wrapped in plastic inside the package, possibly due to the high humidity, possibly for social reasons (or both). Gift packets of for example chocolate also always use individually packed pieces. In the grocery store, if you buy plastic-wrapped on-styrofoam fish or meat and some other foodstuff, the cashier will always put this in an additional plastic bag. Eggs are packed in plastic (in my home country that would be cardboard). And so on and so forth. We bring our own bags,typically, but there's just so much plastic..