A couple of things I have noticed that could probably reduce costs by a fair bit.
1. Require curb side mail boxes on all locations where it is feasible. I live in an older town and probably 75%+ of all residential mail boxes are located on the house. This require the mail man to run his routes on foot which greatly increases labor time/expense.
2. Consolidate small town post offices. I used to live in a town of approx 250 people. We had our own post office which was manned during normal office hours. The neighboring town of 60K was all of 8 miles away. Why not merge the two?
*Now for my rant!*
The postal service here sucks big time. It is a normal occurrence to have your outgoing mail sit at your mailbox for days on end. Many people complain about this. In some cases I have had them deliver my mail and leave my outgoing at the box. When I and others have complained to the local post master his response was "We are only required by law to deliver the mail, not to pick it up". I am no postal law expert and this very well may be true but common its BS that they are clearly slacking in their duties simply because no one is forcing them to do it. No wonder they are bleeding money when the they are out the labor to deliver and skip the revenue right there at the box in the name of laziness. No wonder so many people around here have decided to use private sector services instead. /end rant