This Swedish company that you probably already know about (for good reason,) is known for its insanely-low prices and trendy styles—it's basically the clothing version of IKEA. If you need something new to wear to work or for a night out, you can easily find a variety of items, like the denim jacket here for under $30. H&M has basics, eco-friendly lines, and does regular collabs with top designers to bring you the latest fashions.