More tips:
If you can ride a street bike, get one. When traffic is bad and twisted, motorcycles will ride between the lanes on the freeway and can get places fast. I've done it for years (it is legal here), and with proper caution, you can do it without dying.
On food, there are lots of places that you might never eat usually that have great food. Look for crowds of people. I live near a taco place literally has lines out the door onto the street, and it's good. Same with taco vans.
Don't live in the Valley, or inland. The best place to live (in my opinion) is Culver City/Marina Del Rey/Mar Vista. Those areas are close to the ocean, far from sewage plants, and reasonably priced (by LA standards). Santa Monica has great weather, but is expensive. Torrance has cheap housing, but is a concrete wasteland. Manhatten Beach is Manhatten Expensive (as in $1600 for 250 square feet, no kidding). Inglewood is overflown by jets all day (LAX). Compton is... well documented in the movies.