Grow an herb garden. Recently my daughter planted cilantro in the back yard. When we buy cut herbs from the grocery store, I buy the biggest bunch I can find and store it in a glass of water in the fridge. This helps extend the freshness and flavor of both parsley and cilantro.
Take advantage of limes in season. When you find a great price or a neighbor has some to share, freeze the lime juice as well as the zest so that you can enjoy the delicious citrus all year long.