Cat owners! Check your local Petsmart for 10.5-pound jugs of Purina Pro Plan Renew Cat Litter possibly on clearance. At my store, I found them marked down to $8.67 (regularly $22.99). Buy two and use a $10.00/2 coupon to pay only $3.67 each. Stock up!
You might also be able to score 15-pound pails of Pro Plan Perform Cat Litter for only $5.67, no coupons needed!