Experts call it â€œthe Oprah Effect.â€ Just a mention on The Oprah Winfrey Show or in O Magazine has been shown to be game changing for a struggling retailer or modest size small business. CNBC produced an entire segment about the craze, including the success story of Lisa Price and her business Carolâ€™s Daughter, which was catapulted to from $2 million to $20 million in sales after a 2002 feature on Oprah. Similarly, after one of Winfreyâ€™s producers sampled the key lime bundt cake from Fort Lauderdale bakery We Take the Cake and Oprah mentioned it as one of her â€œfavorite things,â€ the struggling business was transformed. For two straight weeks after the segment aired, the phone rang around the clock. Sales quickly doubled and the company now makes wedding cakes for hotels that range from $5,000 to $20,000. Forget Midas, Oprah has her own golden touch.