> Personally i think this is a great move that reduces overpackaging and its associated environmental impact
I've chosen to do Amazon's Amazon Day Delivery service several times, but I have stopped doing it, basically without a choice. It's guaranteed to worsen the packaging. They just throw everything in a big enough (normally bigger than it needs to be) box and put a piece of paper in there and call it good. It's just unacceptable. Plus, their incentives for doing so are not good, often non-existent, and you are still paying the full Prime price, which keeps increasing.