Owning a pet comes with various costs, including initial expenses like adoption fees, pet supplies (such as food, bedding, toys, and grooming tools), veterinary care (vaccinations, check-ups, and unexpected medical expenses), pet insurance, licensing fees, grooming services, boarding or pet sitting costs when you're away, and ongoing costs like food and treats. It's important to consider both the one-time and recurring expenses when budgeting for a pet.