The "ambient thinking" in the shower you are referring to has been studied extensively. Here is the New Yorker article on the studeis of insight and creativity:

The "ambient thinking" in the shower you are referring to has been studied extensively. Here is the New Yorker article on the studeis of insight and creativity: http://www.newyorker.com/reporting/2008/07/28/080728fa_fact_lehrer http://www.newyorker.com/reporting/2008/07/28/080728fa_fact_... Research suggests (as you have discovered yourself as well) is that the most creative moments are 1) while showering 2) shortly before going to bed 3) shortly after waking up.