The Room of Requirement is located on Hogwarts' seventh floor, across from the tapestry of Barnabas the Barmy. To "open it" you must walk past the area of the door three times, thinking of what you need. For example: Say you need a place to study.
In the short story Abolishing the Penny Makes Good Sense written by Alan S. Binder, the author denied the usefulness of one of the most common entity in the society and most of us hold dearly and relevant. With this view of penny, the author received several opposing feedback because of the divided view when it comes to how we view penny and its importance.
Contacts. About 13% of the US population wears contacts.
Elevator.
Toilet.
Microwave.
Refrigerator.
Vacuum Cleaner.
Cellphone.
Toothbrush.
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