First interview in 3 years! Please send me tips and advice

I have a job interview for goodwill and I’ll be the person who prices everything and get it onto display. It might not sound like much but I love thrifting and watching resell videos so I’m actually excited. I had an interview in 2018 and I feel rusty. Black pants, some dress shoe flats, and and blouse is good right? Or what about dark pair of jeans, a blouse, with dress shoe flats? I’ve been reading some of the questions for interviews and when they ask a default of yourself or something similar, do you say you can take on more than one task at once? Please send tips

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