...Ok. I have already posted a question like this but didn't quite get the information I was looking for. I am going to Paris with 2 or 3 friends on my spring break of my senior year when i'm 18 and with NO PARENTS!! :P. I am hoping to book 2 rooms for 5 nights at the Westin Paris but I am not sure yet. I need help with the following:
1. What is the best way to travel while in Paris other than renting a car?
2. Do grocery stores in Paris have descent prices or is it cheaper just to go out?
and 3. What do I need to know about the time change and airport flights? I dont want to miss my flight back home! lol

Thank you for all your answers! :)

"Best way to travel is underground train called Metro or buses, if you buy a pass you will be able to hop on and off at will within the zone. Zone 1-2 is quite enough to cover the whole of Paris. You have a metro station every 5 to 10 mn walk of any point in Paris (it was built that way on purpose), you have bus stops everywhere. You can get a free map of the buses and metro in any metro station.
Don't even think of getting a car. We drive like madmen, have little patience for people who don't know where they're going, play at bluff-your-way and blink-you're-dead with outsiders (non parisians), and the city is slowly being transformed into a nightmare for drivers, deliberately, to stop people from taking their cars. Parking space is at a premium and traffic jams are becoming horrendous. Which doesn't sweeten our temper.
Besides, you would not be able to rent a car as you need to have a three years old permit for that.

You have plenty of grocery stores, small supermarkets, and 7/7. They are cheaper than a restaurant. Monoprix, Leclerc, Franprix, Casino are a few names for supermarkets. Then you have discount shops, like Ed or Discount. The big hypermarkets are outside Paris due to the price of space in the city. The small 7/7 are the most expensive because they are family owned and stay open most of the day every day.

Time change is +6 hours if you are in New York, +9 if you are in Los Angeles. The landing time on your ticket is the time in local time. The take off time from Paris is also in local time."
(chosen answer)