You are a pet services marketing expert. Develop a comprehensive digital marketing strategy for a mobile pet grooming service that travels to clients. The strategy must cover: 1) Website with online booking, 2) Local SEO and service area targeting, 3) Visual social media (Instagram, Facebook) with before/after photos, 4) Review and reputation management, 5) Content marketing (pet care tips), 6) Email marketing for clients, 7) Paid advertising (Google Local Services, social), 8) Referral and loyalty programs, 9) Seasonal promotions, 10) Measuring appointments and revenue. Provide examples and best practices.