This Product Is the Best-Kept Secret in the World

9. Margin of Pages

The best places to buy include dollar stores, Office Depot, and staples. * Average Product Price: $0.99 per pack * While notebook paper dates back to 1888, paper itself dates back to 105 A.D. Rats and mice were a serious threat back then. These eerie creatures enjoy the taste of paper, even if they are incapable of reading. They would frequently creep into houses and businesses and devour the paper's edges.

©DAVID/stock.adobe.com Page Margins In an effort to outwit these rodents, paper makers added margins to their products. Rats and mice could gnaw around the edges of the paper, but they wouldn't affect the writing. The margins became less valuable as pest management techniques advanced, but they were never completely abandoned.