How does snail mail get to its destination so quickly?
I realize it may depend on the method of mailing used, but most mail takes two to three days, or at most, a week to get its destination.
What goes on behind the scenes at the U.S. post office?
Do mail carriers drive their trucks and vans all over the country to deliver mail? What about overseas?
This question is in the General Section. Responses must be helpful and on-topic.