Pocket protector  

 The pocket protectr was used all the way back to 1500 A.D. According to my hipoglyphical reasearch many astronomers, mapmakers, and many scholars used the device to hold their small tools. Now nerds use it because nerds rule. One day nerds will rule the earth and china along with fried bacon!!!!!!!!!!!!! WHAHAHAHHAHAHAHAHHAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDHHHHHHHHHHHAAAAAAAAAAAPPPPPPPPPYYYYYYYYYYY CHHHHHHHHHHHEEEEEEEEEEEEESSSSSSSSSEEEEEEEEEEEEEE WHAAAAAAAAHHAHHAHAHAHAHHAH!!!!!!!!!!!