Recycling
This is a something that I don't remember seeing when we lived here 30 years ago. I took this photo from the veranda of our apartment. It shows two women working at rubbish collection; one of them pulling a cart full of rubbish along the street.

There seem to be people who make their living by going round all the rubbish bins and going through them for items that can be recycled. In addition, local residents know when they are going to pass and have items ready for them to collect. So I have seen things thrown down into the street from some of the windows in our apartment block, for these people to collect.

Many of the carts, especially those pulled by men, are piled much higher with rubbish and must be extremely heavy to pull. Since this is a fairly common sight, I assume it must be worth their while to do this in terms of what they can get by selling these items of rubbish.