It's Friday, so here's something off the beaten path...
This is how you stop a sneeze. Really. It works.
When you feel a sneeze coming on, and can't afford to do it...because you're talking to your boss or looking intently at your wife...this is what you do to hold it.
Take your finger and put it under the bottom of your nose, between your nostrils. Slowly push up.
That's it. Try it.
Now, if holding my tongue was this easy.