OK. I am coming back to CA, U.S.A. after several years for university from another country. I left U.S.A. about 10 years ago. And now that I am coming back there are many things I need to learn. So I thought this would be a good place to learn about the general things I need to know. So you'll help me right? A few questions that are currently in my mind (I'll continue with these later on.): · Should I buy a car? If I buy a car do I HAVE to get its insurance as well? · Although I'm been driving for over 8 years, I am not familiar with U.S.'s traffic rules? Could you give me a guide by DMV or some other third party which tells all the traffic rules? · Is traveling by train safe? (for e.x. Oxnard to Fresno, or Oxnard to San Diego?) What about by bus? · What should I do about giving tips? How much to give to who? Who should I give tips too? · What else should I do (for e.x. getting shopping cards etc.) once I get to CA? I'll ask more questions as they come to my mind.