I agree that buying herbs are expensive! I love your idea of keeping them organized. Some of my store-bought ones are over two years old. I do grow some of my favorites in a garden box on my patio. Planted three years ago: lavender and rosemary. Planted two years ago: thyme and parsley. Planted annually: oregano, cilantro, dill, basil, sage. Grown in separate containers because they’re invasive: chocolate mint, peppermint, mojito mint. An added bonus is that they keep mosquitos away! I usually cut them fresh, stick in a vase of water or freeze them. Sometimes I’ll dry the lavender, mix with pink Himalayan sea salt in an old shaker and use as car/air freshener.