That's cool. I wish we had something like this in the US.
Here's some info from Wikipedia, the entirety of which is located here (Poste restante - Wikipedia, the free encyclopedia) :
In the United States, the U.S. Postal Service uses the term “general delivery” and reserves the term “poste restante” for international mail sent to general delivery. Mail is addressed as follows:
Mrs. Jane Q. Smith
Washington, DC 20090-9999
In the ZIP+4 code, the +4 code for general delivery is 9999. The main post office in a community will hold such mail for up to 30 days. According to the USPS website, "In medium to large cities with multiple ZIP Codes, you’ll want to make sure senders use the ZIP Code for the area’s main Post Office."
Doesn't the US have amazon lockers?
Yes they do. I used to have one at staples. The sad thing is that the store closed down. One of my neighbors has Amazon Prime. When she orders stuff from Amazon. She gets it within 4 or 8 hours depending on the time of ordering. Oh by the way Amazon Fresh delivers almost everything now here in San Francisco. I don't see UPS like I use too. Here is one of the trucks Groceries Could Be Amazon’s Next Killer App — If It Can Solve the Math | Business | WIRED The funny thing is that I thought they only deliver groceries but that is not true. If you order from Amazon.com they will deliver it too.