Before the wide use of paper sacks, no matter where you shopped your purchase would be wrapped with brown paper and tied up with a string in a neat package, easy to carry.

The String and Paper Centrifuge This toy-inspired centrifuge could enable medical testing in remote locations, and costs just 20 cents to make.

Change a few sheets of paper into a practical A4 file folder with this easy DIY project! Perfect for organizing papers, assignments, or important documents, this homemade file folder is simple to ...