When it comes to Pet-centric megamarts here in the valley, you have two choices that I know of, PetSmart and Pet Co. For my money, I tend to find better deals at PetSmart and they carry a better selection of the oddball stuff that I tend to care most about.
When I was moving into my new place, I was concerned about both the new furniture and the light colored carpet. I have 2 longhair cats who shed like it's going out of style. One is black with a reddish undercoat, the other is soft tortie / grey tabbie. Between the two, we have enough colors to show up badly on any type of furniture or carpet you can imagine.
Employing my internet research superpowers, I discovered the Furminator, which is hands down the BEST shedding tool I have ever seen. I was able to pick one up at my local Petsmart, along with a bottle of Simple Solution Allergy formula cat cleaner. And it turns out they even stock the softclaws brand kitty nail caps that I have to keep on my Maine Coone to prevent him from destroying every fabric surface in existence.
Go Team PetSmart!