I really see this as a problem further up the chain - why is wasteful packaging even on the shelves? Why is there so much crap to throw out? Why was it legal to wrap a product in another 25% of its weight in useless, non-recyclable packaging? I'm not sure why I as an individual am forced to bear the brunt of colossally wasteful pipelines and processes that I had no say in. I can do a bit and reuse bags, buy stuff with minimal packaging (or avoid buying new stuff etc.), but broadly, I have no choice most of the time.