Whilst the legality is questionable, morally I don't see a problem with what I am to suggest but in the past two years I have been eating almost exclusively from the throw away bins at the back of supermarkets.
Everything is thrown out into separate food only bins and has been there for an hour or so by the time I get to it. Half the time it's still in date and everything is still factory sealed and ready to go. Saves it going to landfill and I recycle all the packaging where I can afterwards too. Plus I've never been ill from anything I've eaten, just common sense as to what is good and what is not. I regularly eat meat from there too with no issues.
Everything is thrown out into separate food only bins and has been there for an hour or so by the time I get to it. Half the time it's still in date and everything is still factory sealed and ready to go. Saves it going to landfill and I recycle all the packaging where I can afterwards too. Plus I've never been ill from anything I've eaten, just common sense as to what is good and what is not. I regularly eat meat from there too with no issues.