Depends on what is going on. I can go 3 days without doing anything to my hair. Down the first day, headband second day, ponytail third. I can CO wash 3-4 times inbetween, varying degrees of harshness with CO, of course. Often I will use a harsher conditioner on my roots to get rid of the oil and then a heavy one to actually like...condition.
Other times I will shampoo 3 times a week, though. Or everyday. Depends on my mood. And condition of my hair. And last time I dyed it. If it is fresh, IT WILL NOT BE WASHED. I LIKE RED. NOT ORANGE. But I give up once it is orange.