What's something you rarely use but just can't throw away?

I usually can't throw away easily whatever I get. I'm born to have many worries So when I throw away something, I usually imagine difficult situation without that thing. But I can't clear up well, so my around is allways dirty After I write this, I think I have to clear my office desk. Throw away: 버리다 Have many worries 걱정이 많다 Clear away,up :정리하다 청소하다