There are some inventions that look completely pointless to the untrained eye: who would ever need a motorized garbage can, an electric pencil sharpener or a battery-powered eraser? Quite often ...

Unfortunately, though, it's easy to forget to purchase a sharpener to accompany the writing tools. When you are left with a ...

However, if a TSA agent believes your pencil sharpener represents a threat, then he has the authority to prevent it from ...