Dilute Your Shampoo
It turns out grandma was actually right. You can dilute your shampoo by adding water and still keep your scalp clean and clear. In fact, some doctors recommend this measure to those with sensitive scalp and damaged hair as some shampoos can have an aggressive effect and make your hair dry. Not only will it save your hair but also your money by not having to buy shampoo so often.
Or, as grandma would say, you could just use less. For medium-length hair, a quarter-size amount is probably more than enough. Also, if your hair is not the oily type, you can probably stick to shampooing every three to four days or even once a week.
