Once they’re potty trained...

I think it’s safe to say my 2.5 year old is fully potty trained, but when we started, just to make things easier on us, I bought potties for every room basically lol we started with one but got tired of moving it from room to room and we found in the beginning it helped him to see the potty in the room to remind him. We’ve now kind of put them in the hallways so whatever room he’s in it’s just a short walk to the potty. But I don’t want these potties all over my house forever so what do people do?? Do you get one potty seat to put on top of the big toilet and only use one bathroom? Put a potty in every bathroom? How do people do this lol