The fastest way to get rid of dry leaves ... using ONLY a piece of cardboard

Getting rid of dry leaves is a ritual that reappears every year to those who have a garden or a courtyard. If you don't have the specific tools you will need to come up with something to solve the situation in an acceptable time. This man has devised a method to pile up leaves using just a piece of cardboard, which collects them without ruining the grass below. Not bad!