‘Getting Around Paris’
Beyond the excellent Metro subway and RER light rail, eleven months a year you can get around Paris by boat. That's right, along the Seine from February through December, the Batobus stops near 8 major Paris landmarks. In low season the boat stops running at 4:30 at night, ...
Yes, in Paris it is occasionally wise to pre-book A PARKING SPACE! It has more to do with space restrictions than any kind of odd night-club-velvet-rope-thing. http://www.parkingsdeparis.com/paris-car-park.php
Paris metro transit's website is http://www.ratp.com/. Even in English the site is a bit difficult to use, but it is the official site. Buy a Paris Metro map for $4.00 here. Or view an online map here.