Wayfair co-founder Niraj Shah joins Guy on the Advice Line to answer questions from three early-stage entrepreneurs about how to bet on themselves – and define themselves to consumers. Plus, Niraj explains why Wayfair is expanding into large-format brick-and-mortar stores. First up, Valerie in Washington, D.C., is looking for a better way to educate consumers about her dehydrated chicken stock. Then, Bree in Utah wants to know when to seek investment in her improved mineral sunscreen brand. And finally, Tess in San Antonio is wondering if she should quit her day job and go all-in on her ne...