[thimp]

I had a girlfriend who unpackaged a lot of stuff she bought at the checkout so she wouldn't have to deal with the trash. I thought it was insane for a bit but no it's quite reasonable actually when you think about it.

[jfengel]

I've seen this in places where they charge by the bag for trash pickup. Stores have bins set up for exactly that purpose. (Not sure if that's required or if they volunteer it.)

I've seen it in Germany and Switzerland, but I have no idea how widespread it is.