I wash mine twice a week. I don't use a lot of products on it, so it doesn't get a build up of them weighing it down. I use a shampoo/conditioner, a separate conditioner that I leave in for a few minutes before rinsing, silk which is a leave in conditioner, a dab of mousse for the roots to have volume at the crown, and a very fine mist of hairspray if needed. And then a shine mist on top of that. My hair is shoulder length now, but when it was waist length I still only washed it twice a week. There is no way I have time to wash everyday as I work 12.5 hour shifts (sometimes more) and it would be so dry and flyaway if I did. Plus my hair always looks better and is easier to work with when it isn't freshly washed that day.