On an efficient way to ban plastic bags

So how about this as a cute way to ban plastic bags? East West Market in Canada decided to print odd messages on the bags so much the curstomers would not feel well carrying them around. It seems the issue became a double edge sword, people liked them so much they wanted to collect them all. The owner of the market says it is still a win as people would ask where one got them and the whole rationale had to be explained so a conversation got started.
Here in Lebanon Beit Mery will force consumers to buy the bags at 250 pence which is 1/6th of a Dollar! Here at home, we tend to ruse the bags in all possible ways and what is left is sent to the recycling bin. We do what we can!