Before bringing a new pet home, ensure you have a safe environment by pet-proofing your space to eliminate hazards like small objects, cords, and toxic substances. Secure comfortable bedding, climate control, and necessary grooming supplies. Provide enrichment with toys and areas for exercise. For dogs, prepare for regular walks and training; for cats, set up scratching posts and litter boxes. Research species-specific needs, including diet and veterinary care, and schedule a vet visit for vaccinations and a health check-up. Lastly, be ready to commit to the lifelong care and well-being of your new companion.