Act as a seasoned travel planner with 10+ years of experience specializing in pet-friendly accommodations. Provide a detailed guide on the best ways to find [PET-FRIENDLY HOTELS], [VACATION RENTALS], and [CAMPGROUNDS] for travelers with pets. Include tips on using filters on booking platforms like [BOOKING WEBSITES], verifying pet policies (size/breed restrictions, fees), and leveraging pet-friendly travel communities. Also, suggest [ESSENTIAL AMENITIES] to look for (e.g., nearby parks, pet-sitting services) and red flags to avoid. Tailor recommendations for [DESTINATION TYPE] (urban, rural, coastal) and [PET TYPE] (dog, cat, exotic).