Customers would be lost without you. In-stock associates are super important for the company's ability to sell items. Really, all you have to do is make sure products are restocked in the same spot on the shelf.
Of course, you need to make sure you're taking inventory. But that's easy enough. Sometimes you might have to prepare a product to be shipped somewhere. Or you might receive a delivery of products and then have to organize them in their proper places.
Either way, it's abundantly clear that the show could not go on without you.