I applied in-person. The process took 1+ week. I interviewed at Dollar General (Virginia Beach, VA) in Jan 2014
Interview
I just walked in the store and was offered the position and told to fill out my application online. No interview. I was working for another company at the time and shopping as a customer. The Mgr casually asked me if I'd like to work for the company. I agreed, and we began the application process. It was pretty simple.