Staying at Apt rental by Tuileries/Rue St Roch. I will have a 8am AirFrance flight out of CDG on a Saturday morning. I've decided to be safe and take a taxi. My question, is it possible to just go to Taxi stand (on map it shows one at Pyramids or Palais Royal)? Will taxi's be at stands at around 6am? Or is it necessary to call for taxi? Thanks!