There are 5 things that deteriorate herbs:
To minimize the deterioration cause by the first 4 on the list, store your dried herbs in an airtight container in a cool, dark place. I like to store mine in glass and I use canning jars. I love that they come in all different sizes since some herbs I use a lot of and others I only use sparingly. I store them in a cabinet down in my family room where it stays pretty cool year round. Unfortunately because kitchens tend to get hot when cooking/baking that is probably the worst place to keep them. If you can't store them in a cabinet, try the tinted Ball jars to help keep light out. While I do prefer glass, that is absolutely not the only way to store dried herbs. You could also use plastic ziploc style baggies. The baggies can be stored in a decorative tin or ceramic cookie jar to keep the light out. I love the old fashioned coffee, tea & sugar canister sets I always see at the thrift store, these would be great for storing herbs away from light. I personally do not like metal canisters by themselves. I can sometimes taste a slight metallic taste in teas when delicate herbs like chamomile are stored this way.