Flying to San Francisco from the east coast: $$$
Rental car/uber/lyft in San Francisco: $$
Food/drinks in San Francisco: $$
Booking an Airbnb in San Francisco with an amazingly friendly, courteous, and knowledgable couple (and sweet little Chihuahua, Giorgio) who live in a perfect location with a view of the Golden Gate Bridge right outside their front door and within walking distance to some of the most beautiful places in the city: absolutely priceless