10 Things You Didn’t Know Were Invented By Women

5) Square-Bottomed Paper Bag                                                    (5 of 10)

5) Square-Bottomed Paper Bag                                                    (5 of 10)

You would not be carrying your grocery shopping so easily, if it wasn’t for the invention of the square-bottom paper bag by none other than Margaret Knight. She quickly realized that paper bags without square-bottoms were entirely useless and so invented a machine, which could cut and then attach the flat bottoms to the bags.