Since I originally read that article here on BB in 2011 I stopped using showergel and shampoo (though still use soap to wash my hands) and it’s been great! No greasy hair or general smelliness. No need to remember to buy/pack shampoo etc.
If a conversation ever arises about it, eg when I get a hair-cut, the people I mention it to don’t think I’m weird or anything, they usually nod and agree that they heard the body takes care of itself and congrats to me for giving it a go.
I’m not doing it to help the planet or anything, I’m just plain lazy 
