TED speech event creator Chris Anderson suggests you repeatedly practice your speech to get it firmly in your head before giving it. You can either practice from a written out script, or a bullet pointed list of things to talk about. Either method leads to the same result, a firm idea in your mind of exactly what you are going to say onstage.
Practicing,
Tim Wilson
Professional Speech Coach
Free speaking tips at: http://speakingquicktips.blogspot.com
