Have nothing in your houses that you do not know to be useful or believe to be beautiful

What do you have in your house that is...

1. useful
2. beautiful
3. both
4. neither

...?

(People and pets don't count.)

(no subject)

Apropos of this thread, I think that both beauty and fun are subsets of useful (especially in a Maslowian kind of way). Listing a thing useful only for its beauty under 'useful' would be subverting the question, fairly obviously, but given the absence of explicit mention of fun I think that I'd have put fun things under 'useful' if anywhere, were I to answer my own question.