Thanks for welcoming me here ! I have learn a LOT and keep learning. To continue the topic I have to say that there is no ONE right way to do it and that people travel in different ways.
I ALWAYS pack light, I only find myself rolling my carry on bags in the parking lot, airport and hotel, NO streets.
There has been times that I pack so light that there is plenty of space left on my bag BUT again been able to roll it is very COMFORTABLE.