With so many people living in apartments, someone is always moving in or out. Moving companies show up with 2 to 4 men and 2 vehicles: the truck for personal belongings and the truck with the portable elevator. The portable elevators are mesmerizing to watch. Things are loaded onto a platform and moved quickly up and down the lift, through the sliding glass windows of the apartments. It's such an efficient way to get the job done!
"Necessity is the mother of all invention."