9. Don’t bother with a backup plan. If you need a live Internet connection to demo a site, don’t bother making a screen shot of the site in case the connection doesn’t work. That way, you’ll be at a complete loss for words when the connection fails.
10. Don’t practice. At all. Practicing a presentation out loud takes work and will make you look far too polished. Just wing it.
via businessweek.com
Good check list – points 9 and 10 in this BusinessWeek piece struck a chord