I will be traveling alone on the CZ in a couple of weeks. I am an early riser and pretty much at the dining car as soon as it opens. When I was on the EB and going through Glacier, I ate and headed off to the SSL. Worked out well for me. Got a primo seat and I was able to make it all the way through Glacier before a "nature break" was required.
I would like to maintain a seat in the SSL but would not want to breach any code of etiquette practices. Is it OK to throw down a sweater or something to reserve a quick trip to the bathroom? Or perhaps ask a fellow passenger to reserve my seat?
One etiquette practice that I wish others would practice is silence. I remember going through Glacier, seeing all of those awesome views. It was just something that you wanted every bit of your attention. Some woman was yapping on and on about her car insurance or some other nonsense not in anyway related to the scenery. . At very high volume no less. While it was distracting the good news is she was not talking to ne but another passenger that you could tell wanted no part of the conversation put was too polite to say anything. I have no idea how you can pass through such a beautiful part of the country and just make idle chatter.