Last night my wife and I went to see Michael Buble, and that guy works his butt off onstage. He did just over two hours with no opening act, and the two hours flew by!
One huge thing to note is that it wasn’t all music. In between each song the told jokes. It was a mini stand up set that usually introduced the next song or was about the city we were in. Telling jokes between routines is a great way to add personality and time in your magic show. I used to do this more, and need to get back to doing more of it.
Basic math says if you do eight tricks in your show, and if you can add 2 minutes of jokes between those eight routines, you’ve added 12 minutes to your show without having to carry any extra props. That would turn a 45 in show into almost an hour!