I actually shock some friends about a few facts with my hair.
1. I only wash it once a week.
2. It is down to my waist
3. Of my long haired friends my hair is the SHORTEST
4. I deep condition my hair with catnip tea
5. I color my hair with henna once a month
Some interested articles I have found about shampoo as well:
When It Comes To Shampoo, Less Is More
by Allison Aubrey
How to Shampoo the Hair- a 1908 article