inventor should get The Nobel Prize for this

putting wheels on suitcases,

this

has to be among the great inventions of travel, along with the jet plane, before you had to carry heavy suitcases. In fact, many people did not carry suitcases, the porters did it and they gave them

this

tip. An invention here put an end to the porter business. There are no more porters anywhere because of these wheels. I have even seen a child at the airport. Even a child cannot transport one of these suitcases by rolling it. No problem. Women can now carry heavy luggage because of this invention, you can probably move it even if you are in a wheelchair, if you use crutches you can still push it.

This is the biggest revolution in travel since the jet plane and there is simply no way around it. When you buy a suitcase, it now has wheels.