What is exclusively yours?

In your household do you or family members have his/her own (exclusively)? Like Archie Bunker has his chair, and no one can sit in it but him. (At least when he’s home).

It doesn’t have to be a chair, it could be like a piece of furniture or a spot on a couch or even a side of the bed?

For me it’s at Mom’s house, everyone has their own coffee mug or cup and saucer. Also Mom has her chair at the table that is her’s only.