Ride Funiculari from neighborhood then walk to the port to catch the Alibus to the Train Station. Discovered if I take the 0700 ride down can be at Centrale Napoli by 0800 so can easily catch a 0830 train. It is very important to make sure that you have good fully charged earbuds. I have calculated that mine only last a little more than an hour anymore and will need to replace them very soon. When heading home schedule to catch an 1800 train back so that it will not be a problem to catch the Funiculari before 2200 to get back home.
Bring small travel craft for something to do while on the train or other modes of transportation for when there really isn’t much to look at. Buy gum for the train because the air pressure can be just like on an airplane.
Rome was extremely hot. I learned the first day that it is important to pack two outfits per day so that once you check into the hotel you will want to cool off and change into fresh clothes before you head out to find dinner. Be sure to wear clothes that breathe well and don’t show sweat. It is always a good idea to test out the clothes before you go on your trip. For traveling in cities and towns that are mostly cobblestone the backpack option is much better than trying to wheel a suitcase over the stones. Be sure to bring some form of refillable water bottle so that you don’t have to buy plastic ones throughout your trip.