I would suggest you plant your own herb garden (although, I have been banned from doing so by several friends).
First lets cover the different ways that herbs can be used and stored:
Infusion: 1 - 3 teaspoons of dried herbs
1 cup of water
steep 20 minutes
strain
last 2 days refrigerated
normal frequency 1 - 3 cup a day
Decoctions : 1 tablespoon of dried herbs
2 cups of water
place herbs and water in a saucepan
boil then simmer for 15 - 30 minutes in covered saucepan
strain
normal frequency 1 - 3 cups a day
Tincture: 1 ounce of dried herbs
5 ounces of alcohol: volka, rum, brandy or cider vinegar
place ingredients in a ceramin container with a non-metallic lid
for 2 - 6 weeks, shaking periodically
strain and store in another clean jar
lasts for 2 years
normal frequency 1/2 to 1 teaspoon three times a day
Syrups: 1 part herbal infusion or decoction
1 part honey or unrefined sugar
combine ingredients in a saucepan
heat gently until sugar or honey has completely dissolved
pour into a clean ceramic container
last 3 to 6 months refrigerated
normal frequency 1 to 2 teaspoons three times a day
Poultice: 1/4 - 1/2 cup dried herbs
water
blend the herbs in a food processor and add a bit of water to create
a paste
not storable
Herbal Oil: (hot method)
8 ounces of dried herbs
3 cups of oil (extra virgin oil, safflower or grapeseed oil)
combine in a double boiler, cover and simmer for 2 - 3 hours
strain into a dark bottle
store up to one year refrigerated
massage oil
Herbal Oil: (cold method)
8 ounces of dried herbs
2 cups of oil (extra vergin olive oil, safflower or grapeseed oil)
pack glass jar with herbs and cover them in the oil
cover the jar
place jar in a sunny place for 2 weeks shaking the jar once daily
*if oil doesn't seem dark enough or aromatic enough after 2
weeks add more herbs and repeat the process
strain into a dark bottle
store refrigerated up to one year
massage oil