I actually get Stage Freight all the time. But I have learned to take the freight and make it so I concentrate more on the scene, so I only get it before I go up on the stage.
Have to agree with this so much. Last year, in a play, there was supposed to be a scene where it started snowing, and I tell you, they got some Styrofoam and turned it into little balls so it fell just like snow and looked like snow, and shook it out with a large sheet of paper over the stage where the empty room is.
It's purely amazing what my theater teacher/director does. She's phenomenal.