Don't use conditioner. Just wash your hair once every 1-2 weeks, unless you get really sweaty frequently or have serious odor issues.
There's also this new treatment some upscale salons have (I can't remember the name) that is a semi-permanent color - it coats the hair with quinoa and various vitamins, making it really smooth and healthy, and without damaging it in any way. I'm completely asinine about avoiding hair color, even henna, and I liked this stuff. I recommend it.
