Here in Brazil it's very common to have several showers a day. I, for example, take two. The first is when I wake up, before I go to work, and the second is when I get home from work. I wake up at 6.30am and get home at 8pm.
I assume by baths you also mean showers. I think almost everyone I've ever met including myself would limit to once per day unless they specifically get dirty or sweaty from exercise.
Not shower, bath. Scrub all parts of the body with soap, shampoo, conditioner and post-bath deodorant. Women don't usually wash their hair every day here.
Acho que você confundiu, não? "Bath" normalmente é usado para banheira e afins. "Shower" é o que a maioria dos BRs faz mesmo, ducha/chuveiro com shampoo, condicionador e sabão.