Paris Tourist office

Transport

Paris has a good network of metro (sub-way trains), buses, trams and special long distance trains such as RER.

There are 14 Metro or sub-way trains numbered from 1 to 14 & RER A, B, C, D, E, etc.
For metro/sub-way train details see: http://www.ratp.com/

Ticket Info

Paris visite pass: Within Paris you can think of buying Paris visite pass which provide unlimited travel with bus, metro, RER for 1 day to 7 days.   More information on http://www.ratp.info/touristes/
There are other passes for some more attractions such as Disney land, Palace of Versailles, etc., which are available on above website.
If you know driving and dare to drive enough and ready to mingle in Paris rush can think of hiring a car.

If weekend & below 25 age take ticket called “Ticket JEUNES with Zone 1 to 5” or Ticket mobilise with zone 1 -5.Usually take ticket depends on zone. Paris is divided into 5 concentric circles. as per places to visit ., take the ticket.. 

Accommodation

Since majority of tourist attractions are located in and around center of Paris and ther, the preferred location for accommodation is in the city center.

Hotels

• Usually, in Paris, for a twin bed or single master bed, 2 star hotel the cost is 70 to 80 euros per night.
  
• If you book well in advance you can find cheaper deals. Prices also vary on weekends and during holiday season.
• Book your hotels in advance as hotels  near beaches/rivers, major tourist attractions are in more demand on weekends.
• Check for cancellation policies if you fear cancellations/change of plan. Good budget hotels like  Ibis, Kyriad, Campanile allow you full refund with certain norms