Threads like this remind me of why I don't like trading tobacco. I prefer to either sell it or just gift it outright.
I will say, though, that USPS can be extremely poor when it comes to shipping. My wife -- who runs an Etsy store -- has had packages go to our local Michigan sorting facility, sit there for two days, ship to the wrong state, come back to the sorting facility, and THEN go off to the correct destination.
Once when I was shipping things for her, I took my iPad to the P.O., showed the clerk the tracking information and crazy routing, and asked why something like that would happen. Of course, she had no idea. (She's also the person, though, who, when sending out something overseas for us, repeatedly asks us which word is the city and which one is the country.) We also have a USPS delivery person who likes to throw packages onto our porch from his idling car in the driveway, so we're no fans of our local Post Office. (Never had a single issue with FedEx or UPS, who pickup/deliver to us multiple times a week.)
Just my .02.
Bob