Petco cuts up to 50% off sale items. (Click the "Sale" tab to see these deals. Prices are as marked.) Plus, coupon code "AFFREG" takes $7 off orders of $70 or more. Shipping starts at $5.99, but orders of $49 or more qualify for free shipping. Discounted items include treats, medications, beds, and toys. A couple of best bets:

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