Post within Hong Kong, receive it the next day.
It is very convenience to post letter in Hong Kong, you can post a letter almost everywhere. So it is common for people to post letter than to bring the document to you. It is convenience and cheaper to do so. If you take MTR, the minimum charge is over HK$3, the cheapest is by taking electric tram which is $2. By posting a letter it only cost you HK$1.40. So, postal service elsewhere can provide enhanced service to make more to combat the revolution of internet communication.

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