Hmm, I'm curious about how many pods fill the bag; just wondering about the efficiency/waste of individuals mailing a small bag of aluminium potentially thousands of miles. I can't help but wonder if this system is little more than a platitude from Nespresso to make people feel like they aren't being wasteful.
(I don't mean this as an attack on your choice to use a Nespresso machine - I'm just musing about the recycling system you described)