I'm going with a friend to LA for the first time for 4 days in March. I've always been of the understanding that LA is one place you absolutely have to have a car. She's reluctant to rent a car and is talking about using buses and cabs. Am I nuts? Is she? Isn't everything miles and miles apart in LA? Wouldn't you run up enormous cab bills (like, enough to rent 2 cars)? Any clues on the safety of the bus service? Seems like a bad idea to me somehow, but I've never been there so what do I know? Opinions, informed, slanderous and otherwise, appreciated.