We did a lot of this in the last few days - slog luggage from one train to another. The train system is quite excellent in Poland, as long as you are vigilant against thieves (apparently they are fairly common, and sometimes spray drugs into compartments to incapacitate the passengers, then rob them) although we had no problems. We lucked out on all of the train rides, getting lots of elbow room, and only sharing with a few people. On the overnighter to Ocweicim, we played Jedi mind tricks on people inspecting our car for a place to sit. "this is not the car you want to sit in..." Also,the violent coughing that we were doing might have discouraged them. No, we weren't sick. Just crafty. Crafty....