Boxes and trash of others can be used in many other ways when you think about the environment.

These are boxes from the stuff that I buy. I do not throw them away. I make sure that I reuse or recycle them.

These are plastic covers of the folders which I found in our data room shelves. I also did not throw them. I kept them to find ways on when and how to use them again.

Most of the materials used for these student passes came from the stuff above. The passes were printed in draft quality to save ink and energy.