6. Until you become a practiced expert, pay attention to the suggestions for color schemes that accompany production software. What looks really cool on your monitor may turn into a disastrous chromatic soup when projected onto a large screen. Even worse, some colors dim or even disappear when projected on some surfaces. If you do not leave enough time to preview and correct such defects, you will be in the unenviable position of asking your audience to "imagine" a line running from point "a" to point "b".