I always thought that Keith Urban was telling her to "take your cat and leave my sweater"..... but, maybe I was wrong? AZLyrics.com has it this way:

But you'll think of me
And take your cap and leave my sweater
'Cause we have nothing left to weather
In fact I'll feel a whole lot better
But you'll think of me, you'll think of me

There is a video on Youtube that 'features' the lyrics, and when the video begins, it gives this disclaimer:

All comments are set on approval.  All CAT ones will not be approved :)  enjoy the video....

http://youtu.be/o2NpTwVr968

Upon further research, metrolyrics.com lists "cat" as the lyric, elyrics.net says "cat", lyricsfreak.com says "cap", sing365.com says "cat", and songmeaninsg.net says "cap".

So I guess I am not the only one that thinks he says "cat" in the song??

Who else thought it was cat?? I mean, if there was a cat in the house, I hope he made her take it.....

(Via AZLYRICS and Youtube)