My go-to store for everything. My cat is a bit overweight so I do like the selection of diet cat food. Petco usually has a few different brands of cat grass. The one thing that I notice with every trip is that there is so much available in the store if you have a fish tank.
I only shop here for pet supplies..if you get my drift. The prices are ok.. you can get deals with the rewards card. If you don't have one of those cards get one! The prices can be above average if you purchase several items.