I chose other. I'm not a big fan of showers unless it's in the middle of summer and very hot out. I like baths. So, I often wash my hair in the sink or even in the bath. I condition every time I shampoo, or about every other day. I think once you are out of adolescence and you aren't as oily as you were, there is no reason to shampoo every day. It dries the hair, as does using a lot of products.
I also dye my hair, so about once a week or 10 days or so I use the conditioner that comes with the dye. That stuff is fantastic.