I tried natural deodorant and it didn't work for me. I heard my body would adjust, but it didn't and eventually I had to go out in public again. :D
I haven't used shampoo in two months. I keep an old shampoo bottle filled with water and a Tbsp of baking soda in the shower. I use it about every three days, no vinegar rinse. I have (had) oily hair and after the 4th week or so, my hair got pretty gross. But I stuck it out and it did adjust.
I rinse the boys' hair with water and use a little bar soap if they get something sticky in it. My oldest uses soap or just water and my husband shaves his head, so he doesn't need shampoo either.
We cloth diaper, so I only use cloth wipes, just wet, no soap. It does the job.
When my middle ds was healing from a burn from a hot cup of tea, the surgeon told me to use a gentle soap on his skin and he specifically said to avoid J&J.