Just the online application should be enough. Corporate stores run skeleton crews so if they are hiring, then they really need bodies and the manager will be scouring the online apps like a vulture.

I would definitely still goin in after applying online. It makes a good impression. I did it for my store. I would just call and ask “when will your hiring manager be in.” Go in a day they will be there! It makes you a more memorable applicant too.