The plane trip was nice. 10hrs but got some sleep. Mom was walking in the people mover so slow that I was passing her on the floor beside her. Took the RER from the airport to Gare d Nord train station where we transfer to Metro. That's where my plan went down!The station is under construction an to get anywhere you have to go up and down stairs. They're everywhere. I had to carry Mom's 50# suitcases and it was killing me. And if I went the wro...