Congrats on your new family member!  


Here are some links to help you see what you might need:


Bringing a new dog or cat home. Things you need for a new pet | PetSmart


New Cat Owner Guide: New Cat & Kitten Checklist | Petco


Some great places to pick up cat stuff:  Dollar Tree, Five Below, Walmart, PetSmart, Petco, Chewy.Com, PetSupermarket, Aldi, Big Lots, local grocery stores, your vet and online shopping sites.