Sign up for up to $10.50 in coupons from Arm & Hammer Clumping Cat Litter.
After you enter in your email, you should get your coupons. I did this a while ago and I also get Arm & Hammer coupons for other products!

Use this printable coupon to save 10% off your next purchase of Select Natural Dog Food Brands at Petco with a $20 minimum purchase.
Must present PALS card with coupon.
Valid until November 30th, 2010.

Print this coupon and save 10% off your purchase of Select Natural Dog Food Brands at Petco.
Must present coupon with PALS card.  See coupon for dog food brands that are eligible for discount.
Valid until April 30th, 2010.

Use this printable coupon to take $5 off your purchase of $25 or more at Petco.
There is also another printable coupon that you can use to take $10 off your in store purchase of $50 or more at Petco.
You must have a P.A.L.S. card (they are free) to receive the offer. Not valid on gift [...]