One time a day during the winter. In the summer I am usually on the beach or at a pool all day and then take a shower after that so once a day in the summer as well. When a girlfriend is over it can be two or three times because my bed is wicked noisy.
In summer two-four times a day, you cant breathe if you dont do this here in Greece Last Summer! too HOT!
I guess it depends where you live as well? I live in victoria BC Canada...I take a shower once per day, more then that is overkill unless I go to the gym or something then i take a shower afterwords....on average though once per day i guess.
In the summer 2 times per day it really depends on how hot it is. In the winter i shower every other day. It's cold here. - Prilep