BANGKOK—On her lunch break, Bangkok office worker Chinapa Payakha emerges from a 7-Eleven store with two plastic bags.
One holds a Big Gulp soft drink. The other carries her lunch, with a banana in its own plastic wrapper.

BANGKOK—On her lunch break, Bangkok office worker Chinapa Payakha emerges from a 7-Eleven store with two plastic bags.
One holds a Big Gulp soft drink. The other carries her lunch, with a banana in its own plastic wrapper.