10 Romantic Valentine"s Day Gifts!Photograph by Manjunath Kiran AFP/Getty ImagesThis year, Americans are expected to spend $19.7 billion on Valentines Day, according to the National Retail Federation.The five most common items purchased for the holiday and their average prices, according to Bankrate, are a box of chocolates ($15.11), diamond earrings ($323.26), a dozen roses ($41.66), dinner for two ($80.46), and a bottle...