Groupon has their Pet Deals section back again! There are some great deals to be had. My favorite is the $15 for $30 worth of pet supplies from Entirely Pets. They offer: K9 Advantix flea repellent, Purina dog and cat food, vitamin supplements, CET dental-care chews, toys, and more.
The company regularly donates a portion of its proceeds to the North Shore Animal League, the Humane Society, and the Search Dog Foundation. There is a limit of 1 deal per person and you must use it by Nov. 28th.