Upvote:3
Supposedly there's a smoke shop (tabac) in the Carrousel just a short walk from the Pyramid that sells tickets. Get your tickets there and skip the extremely long line at the Pyramid for non-ticket holders and get in the shorter (or non-existent) line for ticket holders.
Upvote:5
This answer applies only with a precondition.
If you can buy Louvre tickets in your hotel, do so. Then choose the pyramid entrance, ignore the entire queue and walk right up to the pyramid, where you can directly enter based upon your pre-bought tickets.