Tidy Cat $1 off kitty litter printable coupon

Tidy Cat has coupons for $1 off a bag of kitty litter. I usually buy the 10 lb bag at Walmart for $1.77 and when I have these coupons, it makes each bag less than $1!! Look for the coupon link toward the bottom right side of the page-you will have to register, but it is worth it.