There are literally tens of thousands of products on sale right now as part of Amazon’s Big Spring Sale . But just because something is discounted doesn’t mean it’s worth your hard-earned dough — the best items are the ones that are marked down and highly rated. At NBC Select, we typically focus on items that have at least a four-star average rating from at least a thousand reviews. But given the sheer amount of items on the marketplace, it would be difficult for shoppers to do that every time