Make your shampoo last longer To make shampoo last longer, keep a smaller sized, empty, shampoo bottle in the bathroom, right next to the shampoo you are currently using. When you are ready to wash your hair , put a dime size of shampoo into the empty bottle and then add some water and shake it lightly. Now the resulting solution is much easier to use on your hair and offers more lather and also uses less shampoo. Remember to clean the bottle later on.
A guide to frugal beauty and health.