OK, Dr. Schulze says to put your herbs in the blender, add just enough 80-100 proof vodka to cover the herbs, and blend. He says you can mix your multi-herb blends in a bowl first if they don't all fit in your blender. Then you whirl it around enough to make an herbal-vodka soup.
Pour this into a glass jar with a tight fitting lid. Uny says to make sure the lid doesn't have a paper or plastic lining in it. You let your tincture "steep" for at least two weeks before harvesting. Dr. Christopher says to shake your jars every time you pass by them. I think it would be a good idea to set a timer or make a habit to shake them before you start making meals and before you go to bed, or some idea like that. It's a lifestyle change. :-)
If possible, wait to harvest until the full moon. As Uny said, only harvest what you plan to use over a short amount of time, and let the rest of the tincture continue to get stronger and stronger.
You can also extract herbs in oil- like olive oil or coconut oil.
I'll be tincturing till fairly late in the night. :-) I'll bop in every so often.