What is my job title?

When I started this job, I was hired as a salesperson at a wine shop. Since then, my responsibilities have expanded to:

-marketing (writing e-mail blasts, making in-store fliers, promoting through social media, writing reviews of beer and wine)
-setting up wine tastings (scheduling distributors, picking wines, sometimes running the tasting myself)
-tasting and evaluating new wines to purchase
-merchandising
-opening and closing the store

It’s a pretty small company. My boss is the owner and he’s pretty involved, so there is no manager. Instead of just asking him what my title is, I’d like to bring a few suggestions to the table. Thanks!