plyswthsqrrlsGuess it varies from store to store then. The store I was hired by was pretty in depth with their interview questions because it's a specialty store and the customers tend to know their shit so if you get rambling on about something you're unfamiliar with, you can be up shit's creek pretty fast. Also depends on the job you're interviewing for, obviously cashiers will be asked different questions than someone working the floor helping people get the right product.
As far as what to wear, you should dress for the job you want, not the job you're applying for. In speaking with my managers, when they interview someone who walks in wearing a T-shirt and shorts, they're already starting behind the 8-ball and have to dig themselves out of the hole. Not impossible, but I've watched those interviews go down and it usually doesn't last long / end well (usually with a big 110, code for NO, on top of their resume). What's wrong with wearing a suit? It shows you want the job and care enough to dress up for it. People might laugh or whatever, but at the end of the day managers want to see employees who are passionate about their jobs. Dressing up for interviews has only ever helped me in pretty much all areas, not just retail jobs. Shit it even helps when you go asking for a raise later, my managers always remembered that I wore a suit to my interview
So I used to have this job where it was my job to find candidates for jobs in the action sports industry. We would also do things like have resume workshops, make videos on how to interview... all that fun stuff.
For retail, the rule is that you dress in the nicest clothing the company offers, if they don't offer lifestyle clothing, then you look at a similar company that offers both their products and lifestyle clothing and opt for their nicest look. In the outdoor industry this usually means chinos and a nice woven shirt (that fits you properly) and nicer shoes. TNF sells lifestyle clothing, so you can easily see what the nicest pants are and what their nicer shirts are.
The thing about wearing a suite. If by reading you're resume, you're one of the top contenders, then a suit wont hurt. However, it typically does 2 things. 1) the interviewer (especially in retail) will likely be dressed far far more casual, it make make the interviewee more nervous and uncomfortable with their decision. 2) it can set a bad impression since with lifestyle brands, the key is to fit in and show that you would be a positive representative for their brand. Wearing a suit is a missed opportunity to show you are in tune. I'm not saying show up in a TNF tshirt, I'm saying figure out the nicest stuff they sell and go for that. The person interviewing you will either be similarly dressed or a step down.
This advice really only goes to outdoor/lifestyle industries. If you were applying to be a bell hop at a hotel, I'd say black slacks, black shoes, and a white shirt and tie. Different industries, different standards. The suit and tie dress code they teach you at school isn't all encompassing.