haven’t washed my hair with shampoo for a year and eight months, using only baking soda/water as “shampoo” and apple cider vinegar as conditioner (see my no-poo post here). It keeps my hair squeaky clean and I’ve been very happy with it (I promise – it’s not disgusting!). The price is right (cheapest thing EVER!) and it really works to clean (contrary to what one might think). Except for one thing – my hair is dry.