I'm embarking on a month of not using shampoo. I read about it in Good magazine, and how after six weeks of no shampoo, hair returns to its glorious best; kitteny soft and sweet smelling. But rather than go cold turkey and just not wash it with anything, I'm using this as a guide - washing with baking soda in water and an apple cider vinegar rinse. I didn't wash it with anything yesterday and used the baking soda this morning. It's gone pretty floppy and soft, which is nice, but I can see I won't have to wash it that often (I'm an everyday with tonnes of shampoo person).
Why am I doing this? Partly to save money, partly because I'm sick of the industry that tells us unless we dump tonnes of crap on our heads and our skin we're not beautiful enough.