Did you know that you can use Soap as Shampoo?
If you are interested in reducing your single-use plastic, or just saving some money, you should give a shampoo bar a try.
Everyone has different hair, so you might have to try a few different bars to find one you like, but you can always use them as body or hand soap if you don't like them in your hair.
Some people rinse with apple cider vinegar, others still use a conditioner, and others don't use anything other than soap. Experiment and find what works for you!