Avengers: Infinity War Has ONE Post-Credits Scene
Don't leave your seats...
Since Avengers: Infinity War is an MCU movie, you already know going in that you don't do silly things like leave when the credits start to roll. That would be like walking away from a good meal before the dessert is served.
Obviously, whenever there's an MCU release, the question turns to how MANY post-credits or mid-credits stingers and teasers there are going to be. Guardians Of The Galaxy Vol 2 changed the game, but it's mostly safe to assume two stingers these days.
But according to the reviewers who have already seen the full film in LA, Avengers: Infinity War has only one post-credits sequence. That much actually makes sense if the talk of the ending being a huge deal are true - Marvel won't want to undermine the emotional impact of that by interrupting the dark calm of the credits with too many distractions.
There's a possibility that it could be the debut of Captain Marvel, assuming she doesn't turn up in the movie itself, or that it will feed directly into Ant-Man & The Wasp, since that's the next movie on the MCU slate.
And it's worth saying that there was only one post-credits on The Avengers when that screened for critics - it wasn't until later that the schwarma scene was added. So Marvel might be sitting on a secret second for the main release.