I am contemplating a Grenat Purse for work but I notice that the size of the zip opening at the top is smaller than the width of the bag itself, with the corners at the top sort of pinched together. Does anyone have a Purse and can measure the size of the opening? I work only part time and don't like the idea of a City or Work (too structured) or... the Part Time! And The Shopping is opened at the top. I want to be able to slip documents in the Purse. Do you think the opening at the top would allow me to fit in a 15" computer notebook? Thanks ladies!