WANT TO SAVE TIME AND MONEY WHILE IN PARIS ? -- Use the Paris Transit System. Riding the Metro, RER, bus, tramway and Montmartre Funicular will definitely save you time, but buying the right transit ticket or pass will really save you money. To learn how to use the Paris Transit System, visit www.parisvoyage.com and www.facebook.com/parisvoyage ( May 10, 2013)