RER B, Paris
Think about RER B to Paris from CDG. It's CHEAPER and FASTER the a CAB!! But you will be on a subway so if you have more then ONE bag PER PERSON, stick to a cab or bus.. But if like me you travel LIGHT, hit the RER B to Paris.. It will cost about 80ff but it is CHEAP and FAST!! Take the one marked 'TGV' it is the express train and only makes a FEW stops between airport and Paris. From this subway system 'METRO' you can go ANYPLACE in Paris from the airport for only 80FF!!!
METRO!!!! NOTHING beats it!!! The French subway system is called the METRO. It's GREAT and CLEAN!!! You can get ANYPLACE and FAST with ONE TICKET!! (6-8 FF)..Just don;t go up to a street until your where you need to be!!! Follow the signs to where you need to be.. the system is simple and maps are ALL OVER the place in the METRO also in EACH car. The Buses are good also but can get you a BIT turned around if your not watching out.. Also they take FOREVER sometimes as traffic in Paris can be REALLY bad.
The best way to get there is by plane or train. Most planes land on Charles de Gaulle airport to the N of Paris, and from there, you have a RER line that brings you directly to the city, or you can take a bus, like we did (the RER is cheaper, however). There's another airport, Orly, to the S of Paris. There are also several train stations scattered around the inner city center, if you come by train (we left for the Netherlands from the Gare du Nord station), and once you're there, the nearest Metro is usually only a corner away. I don't recommend car though, unless you have steel nerves and patience. Parisian traffic is chaotic and French drivers are quite impulsive, which you'll see best if you just look down from the top of Arc de Triomphe.