A symbol of wealth, health, power and peace, the mighty olive is more than a tasty and nutritious ancient fruit; it's a cherished modern commodity, from trees, to fine cooking oils, to luxurious body products. Get expert advice on what style of oil flavors - buttery, tangy or peppery - pair best with various meals. 4791 Dry Creek Road, (707) 431-7200, www.drycreekolivecompany.com. Gather up the olives from your trees and learn how to cure them from award-winning olive oil producers at Old Chatham Ranch. The ancient Greeks used olive oil as part of their beauty regimen, and it's still a great way to hydrate and soften the skin. Try the Ultimate Olive Martini with goat cheese-stuffed olives or the Spicy Dirty One with jalapeno-stuffed olives and the special house brine olive juice blend. 743 Larkin St. (415) 776-9814, www.olive-sf.com.