Not sure about The Big Bus, but there was a special for D'Orsay and the Orangerie.

Non ci sono problemi, anche io per errore ho prenotato due biglietti entrambi a mio nome, ma non hanno posto difficoltà all'entrata. Guardano più che altro il codice a barre presente sul biglietto. Buon viaggio!

I have just returned from Paris. The strike troubled us a lot. The metro works only 7.30 - 9.30 and 16.30-19.30 and some metro stations are closed as well as some lines of the metro. We could not use it because it was very crowded! It was awful. I propose you to download the application "citymapper", it really helped us. It contains all information you need about the strike and how you can get anywhere in Paris.

Bus 84, about 30 min trip. Enjoy

can also buy online a ticket to be printed by yourself (FNAC for example). For me, it is worth to do it like that.

When I visited the queue for timed tickets was longer than the queue for those who had just turned up and queued.

After purchasing online, most outlets send you the link with a barcode on your mobile phone that can be scanned as you enter. You might have an option to print tickets, but we never had to pick up an actual ticket in any of the museums we visited.

Hi, I had a Museum Pass. If you plan on going to several museums, churches, etc., it can be a good deal and you just show your pass to get in, no ticket line. (Not always a sure thing at the Louvre, but worked fine at D'Orsay. Museum passes are available at the airport at the Tourist Information kiosks). If you don't want a museum pass, I would recommend online tickets that you present with your phone. They are fine with those all over Paris.

Hi Carol, Im Marie and I live in Paris. I'm going often in d'Orsay museum during the week, and usually I don't have to wait too long :) 10-15 min max. To be sure you can buy the skip line tickets :) but I'm not sure it's really worth it !! Moreover as the new exhibition has already started since a few weeks, I think it will not be extra crowded this time. Enjoy the permanent collections (I particularly recommend you the impressionist floor and the current exhibition about Degas . Cheers

I had a bar code from our ticket on my phone and they scanned that with no issues. Many people were using their phones to get through the ticket gate into the museum. Enjoy your visit!