Follow Petco on Facebook, Twitter, Instagram, and Pinterest for cute animal photos, new sale updates and more. If you return online merchandise, you will be responsible for the shipping cost. Humans and animals alike love Petsmart! Live fish and invertebrates will be delivered next day unless you choose Saturday delivery. Costs will, of course, vary by pet grooming services selected. No matter which category your pet falls within, finding a good pet groomer is essential.