Having a camera with you may get you better customer service at places like restaurants, retail stores, and hotels. Consumer advocate Christopher Elliott writes,
The last thing employees want to see when they’re delivering a substandard product or service is a shutterbug. If they think you might take a snapshot, or a video, of their incompetent actions, they’re far likelier to do the right thing. The presence of a camera alone is often enough. Try it sometime.
If you already carry a camera with you everywhere you go, then you’re already set! If you don’t, you might want to think about bringing one along whenever you’re in need of customer service.