Well, I have 5 bedrooms, no bathtub, 1 shower 1 wc, and the 3 teenagers,
and oftimes their friends, sometimes had to fight for time.
Know what? I Feel it made them better people beacuse they had to schedule shower times etc etc.
Just my 2 cents.
PS. If I ever get a job and save some money the wife wants a TUB and a 2nd bathroom. 

Go figure. 
