Your grocery store may seem like a mecca for gourmet salad dressing, but it's easy to get caught up in pretty packaging. The front of the bottle may boast health-conscious mantras, but when you read the label, it's often a very different story. Making your own dressing at home may seem unnecessary, but the freshness and flavors are incomparable; most of the time you just toss a few ingredients in the food processor and blend away.