How often one bathes or showers really is an individual matter.
Looking around the net it seems the majority shower every day or at least every other day.
I have problems showering even though I have a wet room and my wife insists on bi weekly showers and hair wash as a minimum hygiene standard, she showers more regularly but twice a week is my maximum endurance. I would probably do it less than once a week if trying to do it by myself.
You need to evaluate how often you do, whether thats acceptable to you, why you don't do it more often etc.
