Nobody likes wet feet, unless you are swimming or taking a shower. I was in a very large city in China when I saw this sight. It had been raining for a couple of days, so not only was the rain falling, but puddles were forming everywhere. These guys had a great idea of how to keep their shoes and feet dry. They tied plastic shopping bags over their shoes, and away they went. I apologize about the quality of the picture, but it was taken through the window of a restaurant.
The city I was in is in northern China; it gets very cold there in the winter. The use of plastic bags on your feet is nothing new in this city. I was taught to use plastic bags between my socks and shoes to keep your feet warm in the winter, and I must say it works amazingly well. Who would have thought something as common as plastic bags could be used to help your feet so much!