Dried herbs and spices are sold in bulk and lots of container sizes. Although the cost difference among the choices may be relatively small, it can add up when you start to buy various herbs and spices. Once you’ve made your purchases, you'll want to preserve their value, not to mention their taste. How long will your herbs and spices remain usable and where should you keep them? Maybe these aren't burning issues of the day, but somehow you will have to figure them out.