More than 700 million pieces of mail are sorted and delivered by the US Postal Service each delivery day, so how does a letter travel?

1. Deposit a letter in a collection box
2. Mail is collected at the local post office and sent to a mail processing plant
3. At the processing plant, a machine rapidly separates by shape and applies a postmark
4. Each letter is then identified with a barcode representing the address
5. Mail is then further sorted into ranges of zip codes
6. The sorted mail is then placed on airplanes to move across the country
7. Once at the destination airport, it is moved to another mail processing plant that splits the mail to the branch or post office that will deliver the letter
8. The mail is then further split to individual carriers are sorted in delivery order
9. Finally the mail carrier makes the delivery

If people could travel the bulk of their trip with ride sharing, then mass transit could cover the last 10-20%.  We just need an efficient way to group rides and allow passengers to travel together for a greatly improved transportation system.

Imagine you are heading to NYC.  You see someone waiting at a stop and you provide them with a ride.  It does not cost you anything.  They get a faster ride (no stops) and pay you less than a typical bus ride.  You both win and so does the environment.

photo credit: kimberlyfaye