We have a 3 bedroom, 1.5 bath house, but... We have 5 potties to choose from - 3 of them being pink! The first two pink potties belong to the twins. At first I thought 1 would be enough, but no, not unless I wanted accidents in the floor and to spend twice as much time in the bathroom. It was easier just for them both to have their own. Then I started potty training my niece whom I kept daily at the time, and I delayed getting her a potty. Eventually I decided it would just be easier for them all to have one to use at the same time, so her mother kindly delivered another pink potty. We now have plenty to go around and my hall bath is a public restroom.