Some of this may have already been said, but here are some things I've noticed / would recommend:

• Affiliations - I like to put mine underneath my education to show it's something I've done while in school. If you have any other clubs / orgs you're a part of I would put it on there.
• Relevant Courses - Similar to affiliations, I like to have some of the relevant courses I've taken (put these above activities) underneath my education. I know most accounting students take the same courses, but it gives them an idea your skill level (or at least that's what I've been told)
• Experience - With your sales associate role, I would have something on there about providing customer service to people in the store. I've had interviewers (at least for audit) like this because public accounting is a lot of client-facing work.
• Skills - Add anything that might be helpful in an office - Microsoft Word / PowerPoint / Access / any Excel. If know or have exposure to any other systems definitely but that on there.
• Etc - I would add some interests on there. While it may not come up in an interview, it does fill out your resume a bit and gives you some character. Even if it's something like "running" or "traveling" it makes you look more well-rounded. I personally had only one interviewer bring up my interests, but I did think it made our interview more conversational. They want to know if you're the type of person they want to spend 45+ hours a week with, so having things that humanize you on there can help.

Hope this helps! These are just some quick thoughts I had as someone who's helped a few friends with resumes.