On Kohls you can stack up to four coupons, so in addition to the 30% off (pies30) and the $10 off of $25 purchase (vetsday10) and free shipping on any order (freemvc) you can also stack any of the coupons below:
$10 OFF your Nunn Bush footwear purchase of $50 or more- NUNNBUSH10
ONLINE EXCLUSIVE EXTRA 10% OFF Mohawk Home, Smartstrand, American Rug Craftsmen and Karastan rugs- RUGS10
$10 OFF your daisy fuentes® purchase of $40 or more- DAISY10
$10 Off your men's Big & Tall apparel purchase of $30 or more- MENBNT10
I had trouble stacking the fourth coupon using Chrome but with Firefox it worked without any issues.
$10 OFF your men's Jockey underwear or T-shirt purchase of $40 or more. JOCKEY10
EXTRA 20% OFF all juniors' Candie's® apparel. CANDIES20