What is great about Echinacea is that you can use the tincture topically when you get scrapes, cuts or wounds. We like to keep it in our first aid kit. Also, you can use the tincture to help other folks in your family.
Now, the real purpose of the Kit is education. So, you can use the exact same tincture method for any other dried herb. Some ideas might be valerian for helping with sleep, or skullcap (Scutellaria spp.) for stress. You can learn more about these herbs in books or on HerbMentor.
Go ahead and make that tincture, and remember the Kit is simply empowering you to do this yourself with ANY herb in the future. Even with fresh plants you gather. With fresh plants, you'll fill the jar all the way with chopped-up herbs as opposed to halfway with dried.