This probably isn't the answer you are looking for, but they bathed more than the common people of their era and slightly less than people of today.
Hope this helps even a little.
There are roughly 6,500 spoken languages in the world today. However, about 2,000 of those languages have fewer than 1,000 speakers. The most popular language in the world is Mandarin Chinese. There are 1,213,000,000 people in the world that speak that language.
Answer: To do whatever you feel is right, follow your own path, achieve your goals.
Hope this helps! :)