Today I found out that the PSPTB (postal service powers that be) are going to teach me another route. This route has a sub already (she's a very nice person too and has helped me out of a jam more than once), but they want all the subs to know as many routes as possible by summer vacation season.
I just got back from driving it: no businesses, no cluster boxes, no mandatory dismounts, a full 100 fewer stops than my current route, and most of it in some of the nicest, scenicest country that we have here in Pottsdom.
The supervisor said, "This route's a breeze compared to the one you're on."
But I still have to learn it (while also doing my current route on Mondays). Looks like I'm going to be one busy dude for the next week or so.