Once again, with the ruthless competence we've come to expect from Harry "DevHawk" Pierson, comes a very useful VS.NET macro. It toggles your Font Sizes back and forth from (in the example) Courier New 10pt to the gloriously readable Lucida Console 18pt. Get it, use it, make it so. Thanks Harry!
It has been said before, but I shall rephrase: If your presentation uses a projector, make sure the images you project are readable. The time for "can you see this?" is NOT during your presentation. If you do nothing else before a presentation go into Notepad, VS.NET and the Command Prompt and change your fonts. (You may be a great engineer, but you have it admit it's embarassing to hunt around in Tools|Options, like you've never been there before, and have the audience direct you to the right setting.)