This entertaining and informative video on the Chinese obsession with gift-giving reveals a lot about contemporary Chinese social and political issues (covering everything from social competition to corrupt officials) and also delves into the ancient origins of this long-running practice.

There are so many reasons to go window shopping.

And yet more reasons for a woman to go window shopping...

A Beijing Television segment on the types of masks to use during the COVID-19 epidemic.

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains the effectiveness of a disposable medical mask.

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks should be used under which situations.

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks are ineffective against COVID-19.

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest discusses what is dubbed "the selfish mask."

This Beijing Television segment introduces four categories of masks and situations where they're most useful.

Guests on this Beijing Television segment demonstrate how to put on masks properly.

Guests on this Beijing Television segment demonstrate how to remove and dispose of masks properly.

A guest on this Beijing Television segment explains under which situations you can or cannot reuse masks.

Li Yin Fei and Li Ding perform their crosstalk act the Spring Festival Gala.

Li Yin Fei and Li Ding show how to refuse to light firecrackers for the New Year.

Li Yin Fei and Li Ding demonstrate the benefits of not lighting firecrackers to welcome the New Year.

Li Yin Fei and Li Ding discuss conserving energy and reducing emissions.

Li Yin Fei and Li Ding discuss "Operation Empty Plate."

Li Yin Fei and Li Ding explain how to implement "Operation Empty Plate."

Li Yin Fei and Li Ding show how to convince others that being less wasteful and extravagant is the way to go for the New Year.

Li Yin Fei and Li Ding show how to convince others that being less wasteful and extravagant will help those less fortunate.

Can you imagine not using anything plastic related for a whole week? Doing so may actually be much harder than you think!

Ordering takeout while trying to eliminate one's use of plastic is no easy task.

Even though we are taught that we should separate plastics so that we can recycle them, in reality, not all plastics are recyclable.

It's very sad to see what we humans are doing to the Earth. Little things can accumulate and turn into big problems.