Beer — stale beer rinsed through the hair after washing can give the dullest locks lots of body.
Vinegar — not only is vinegar great for dandruff and dry scalp, it can also help if you suffer from frizzy hair, as I do. Infuse some apple cider vinegar with rosemary by pouring warm (not hot) vinegar over several sprigs of rosemary in a clean glass jar or bottle. Seal and leave in a dark place for two weeks. The longer you leave it the better it will be.
Rosemary Hair Rinse — Cut several spikes off your rosemary bush (or find one locally that you can use), making sure to cut from the base of the spike so that you don’t harm the plant. Fill a big jar (about 1 litre capacity) with the spikes — chop to size if necessary — and fill ⅔ of the jar with boiling water. Leave for 24 hours with the lid on and then top up the jar with cider vinegar. Use 1 cup at a time and enjoy soft, manageable hair. This rinse will last for about a week, but storing it in the refrigerator will help it last longer.
Lavender Rinse — Follow the instructions for rosemary but substitute lavender spikes.