I don't know about you, but for me, trying to grow herbs always results in an overabundance. The plants seem to produce way more than I can use. Feathers in the Woods has a great post about using an oven to dry herbs. Very helpful! See How to Oven Dry.
Commenter said: I use grape tomatoes and dry at 170 for about hours. i dip them in white vinegar before putting them in jars with a clove of garlic, a bit of fresh herbs and covering with olive oil. I keep mine in the frig for many months