When you buy through links on this page, HuffPost may earn a commission that helps support our journalism. Every product is handpicked by the HuffPost Shopping team, and prices and availability are subject to change. The first day of Amazon’s October Prime Day has come and gone, and after taking time to analyze the sales data, we have a pretty good idea of the bestselling items that flew off the shelves the fastest and what prices dropped the lowest. Savvy shoppers would know that the second