There are paper shredders that cut up the paper in different manners.  This may seem like an unnecessary feature to the average person, but it would matter to the office that has strictly confidential and private information that absolutely must not be deciphered once destroyed.

Prisons, hospitals, government offices, and security firms—even Hollywood stars and starlets must have a higher security level when it comes to disposing of their unwanted paperwork.

Paper Shredders can cut the material into confetti, thin strips, or criss-cross fashion.  Many crosscut shredders can also take on harder material besides paper.  Cardboard, thick stacks of paper bound together with metal spirals, cds, dvds, credit cards, old driver licenses, ID cards, old calendars, signs, and posterboard are some of the important materials that must be shredded as well for maximum security purposes.