Calling all of you with cats! Walmart has the 10lb. bags of Tidy Cats Cat Litter for around $1.77 each. Use the $1.10/1 bag coupon on Coupons.com (search Pet Care) to get each bag for around $0.67 each!
Also, it is reported that you can call Tidy Cats directly at 1-800-7-PURINA and they will send you coupons for $2/1 Tidy Cats Cat litter, so you could score a FREE bag!
(thanks, Money Saving Mom!)