In this challenge we suggest that you make a notebook with used paper on one side.
As much as possible, always try to use both sides of the paper or directly reduce the use of paper by printer. One way to do this is to work on the dual screen computer.
When the above is not possible, extend the life of the folios by using them on the other side in the form of a notebook or notepad.
Quan l’anterior no sigui possible, allarga la vida dels folis utilitzant-los per l’altra cara en forma de llibreta o bloc de notes.