FYI if you're on the hunt for decent pet deals...
Petco.com is having a sale - spend $100, get $30 off (same order). That amount also qualifies you for free shipping. If you have an AMEX (or at least a Blue Cash Back, not sure if they have the same deals for every card), you also get $15 back for spending $50. My mom and I split this and are very happy.
$100 worth of products
-$30 with the coupon code
-$15 with your AMEX
$55 and (hopefully) free shipping
Not everything is eligible for free shipping, so make sure to check your cart. They wanted $15 to ship the 40lb bag of cat litter, and considering I don't live too far away from a Petco, I'll just buy in the store if I really do want to try it.
(Now, I admit, and will gladly accept face punches for, I did have to buy a $5 cat toy to get me over the $100. But my cats are far more spoiled than I am.)