If you have a Kohl's charge card you can use these two codes to get free shipping and 30% off. They might even work without a Kohl's charge card (not sure). Right now they have the spend $50 get $10 Kohl's cash deal going on.
30% off code: SHOPNSAVE30
free shipping (no min.): FREE4MVC
I have no clue when the above codes expire.