Okay, going back to the washing hair debate.
Now that my hair is shoulder-length, I have realized that washing my hair every day has an extra bonus: Avoiding Tangling.
When I was younger, having tangly hair was the bane of my existence. I'm Sicilian and Irish, and I have the misfortune of having hair that is different textures. My Irish heritage gave me some hair that is sleek and straight. The Sicilian hair that I have is coarse, wavy, and thick. Also, my hair and skin gets really dry because of medication that I take and a thyroid condition. My hair used to get tangled and then break, and then I had to deal with obnoxious split ends. Actually, it wouldn't just get tangled, it would spitefully roll into knots so terrible that I would end up ripping out clumps of hair and cry as I brushed my dry, dull, frizzy, nizzasty hair. Then I would be jealous of girls who had nice hair.
My goal is shiny, conditioned, and no tangles. I am a total sucker for hair products and I probably spend far too much on them. I am sure that I have mentioned the actual products that I use (Aveda Black Malva Shampoo/Conditioner, Garnier Sleek/Shine Shampoo/Conditioner, Ojon Restorative Treatment, Ojon Conditioning Shine Serum, and Aveda Self-Control finishing wax) so I won't go into detail here other than to say that I've found my favorite combination.