Silly girls

I really would like to buy some modern furniture for my house but I can not do that right now. I have very active twins in the house and can not buy any new furniture. My daughters like to climb everything and when you tell them to stop they will stop for few minutes then start doing it again. Like the other day they were climbing on top of our couch and they pulled on the curtains until the curtain rod broke. I would get upset but how can I when they were both laughing about the curtains. They are really silly girls.