One of the best things that we’ve discovered while living here is how dead the city is early in the morning on a weekend. As commuters, we take the most crowded metro line in Paris to and from work and school every day, meaning that those early morning weekend rides are bliss for us — guaranteed seats (with only the occasional hobo sleeping in the car), no pushing to get into the train, and the ability to leave at whatever stop we want without climbing over and elbowing 15+ people in an attempt to leave before the doors shut in our faces.
MK had pretty good metro juju the whole time she was here, averaging a seat about 50% of the time we were on that blessed mode of public transportation. However, even she could sense the difference of going out on a Sunday morning, walking from the metro to church, and then heading over to a tourist spot before everyone else had awoken. Theres something magical about having the streets of Paris to yourself while the sun rises over the Haussmanian buildings.