Consignment stores are like candy shops for name-brand lovers. Where else can you find designer bags for a fraction of their retail price? But, all too often, there are also fakes lurking on those treasure-filled shelves. Linda Lightman, CEO of Linda's Stuff and one of the first successful online luxury consignment sellers, has become an expert at authenticating designer pieces. Read on for her expert, fake-spotting tips and never get ripped off again!