My wife and I live in a 4BR/3BA house, I have no idea how we used to get by in our tiny little place 2BR/1BA. My daughter stays with us sometimes, but mostly it's just the two of us and the pets. There's our master BR/BA, my daughter's room and her bathroom, my wife has an art studio in one of the BR, and the fourth BR is our office. The third BA is on the main floor for general use. When we finish the basement there will be a fifth BR and fourth BA which will be a guest area.
God bless America and our massively oversized, overindulgent, opulent homes.