Trench coats: Your outer layer is often what others see first. A removable lining makes it usable year-round.
Shoes and handbags: Stiff leather and junky hardware cheapen your style; quality goods lift it. Mark says, "Your accessories speak louder than anything else."
Lingerie: Without exquisite, invisible support, clothes won't sit right.
Color: Neutrals are safe in inexpensive versions, but you can't fake deeper, more complex shades.