On re-cycle issue... how about the coconut juice? after we finish that little glass of coconut juice, the owner will rinse the glass ion two buckets of water... after a while the water inside the bucket get murky/ milky too....
same situation applied to herbal jelly/ red-bean/ pineapple drink....
On paper bag take-away issue, soya sauce fried noodle is always in those yellow paper bags. I remember when I was a kid, we usually would buy a bag of fried noodle after going the public swimming pool. there is always a old lady selling that. Sghe usually used a rubbish bin size "Red-A" plastic bucket to carry the fried noodle noodle.