My favorite litter is on sale at Petsmart, from $14.99 per bag to $12.99 per
bag:
Link: http://www.petsmart.com/product/index.jsp?productId=2754842
Stack a $10 off $40 coupon and the price drops to $31.99.
There is no free shipping on this cat litter at Amazon; the best price is
the "everyday" price + tax at Petsmart and Petco.