Today in France you must buy plastic bags in supermarkets. But you can also buy some re-usable bags that you fold and put anywhere! It is very convenient!
In China since 1 year or so, you must pay for plastic bags in supermarket.
But you can not find any re-usable bags!
I found these bags in Hong Kong.
And many Chinese I meet ask me where they can buy these bags. It is a great product for our planet and to make business in China!
A re-usable bag from France (Monoprix)