Kohl's has a few coupon codes valid for online purchases now through October 10th.  

Enjoy Mega Savings at Kohl's Two-Day Mega Sale

Featuring two-day deals Friday, October 7 and Saturday, October 8
Plus Take an Extra 15% Off Clearance Items Already 60-80% Off for Men, Juniors, and Kids & Baby with code CLEARANCE15  

Click Here to check out their clearance section
If you shop on Saturday here  are some other codes you could use:  Save an Extra 20% When You Spend $100 or more with code SAVEMORE20!  or Save an Extra 15% with code BUYMORE15!  both of these codes are valid 10/6-10/10