I'm ready to go to my in-laws

We're in the process of packing up to go away for the weekend to visit my wife's parents. While we are packing, Elisabeth is "cleaning the windows" using a diaper wipe. While she was merrily scrubbing the windows, Elisabeth said,

"I'm ready to go to my in-laws."

It never ceases to astound me the expressions kids pick up from their parents.