I wash my hair daily I have all of my adult life and will continue to do so as long as I am able. Why? to me its like taking a shower daily and my hair would not survive getting out of bed and going. If I have to wet it down in the shower and apply conditioner, may as well wash it. I am not a fan of piling on products on hair that has just been "wet down". I do not co- wash - I dont mean to offend anyone but that skeeves me out. I have been useing a sulfate free set of shampoos - the SM line - and am re-evaluating that too. I use warm water. My hair is coarse and low porosity, so product 'sit' on my hair which is why I wash daily and am re-evaluating the sulfate -no sulfate thing.