A lot of people who want to go to Paris museums are terrified about waiting hours in line. Yes, there are turns. But they can be avoided! Most tourists don't even suspect that they can buy tickets in advance, and even if some know, they don't know everything. Okay.
First, rule number one is tickets. Paris Museum If possible, we need to buy in advance. The worms aren't usually in the entrance, they're bananas! And in Louvre and in Orsai, and in Pompidou, tickets can be purchased at FNAC stores (the last two, even first via the Internet, then just get tickets to any FNAC store, refer to a ticket page on museum sites), with such tickets through specially designated entrances (Passage Richelier in Louvre, no entry C to Ors.) Yeah, the ticket's gonna be a little more expensive, but it saves a lot of time. The tickets to Louvre and Orsé are for any day during the period of the ticket, and this is to Pompidou Center, like, for a certain day, but I haven't tried in person yet, the test is in a month. FNAC stores, unlike museums, are closed on Sundays! The tickets should be bought (or taken) in advance. On the FNAC website, you can buy tickets and most concerts, for example, Madonna's concert, or Milen Farmer concerts (no more tickets to Paris) or Tina Turner.