Hidden Features Of Everyday Items

Paper Margins

Unlike what you may have thought, the margins in notebooks aren't there to limit the number of words in one line or for side notes. Manufacturers added margins to writing paper to protect people's work from rats, who, back in the day, were commonly found in homes and enjoyed snacking on paper. Applying the margins left blank spaces on the edges of the paper that even if rats started chewing on it, one's work was still left unharmed.