Help

Im going to malmö tomorrow with my sister and mother. My sister has spent the last many days studying for her physics exams. Which are over now, and went well, so we've decided to take a day of celebration by shopping in malmö. So here's my question for y'all. Do you know any good vintage shops, or just 'regular' shops in malmö that are a visit worth, and is there something you must absolutely do/se while visiting malmö? I'd really really apreciate your advice (: