PetSmart: 15% off Your Entire PurchaseDecember 9, 2010 by Mitchell Wischmann This post may contain a link to an affiliate. See my disclosure policy for more information. PerSmart is offering up 15% off your entire purchase for their Friends and Family sale! Just print out your coupon and shop December 9-12 to get the discount.If you prefer to shop online, use coupon code 4FF15 to get 15% off your purchase of $60 or more.**Don’t forget to go through Ebates to earn 4% cash back!