Large dimensions have a big impact; when your message is 20 feet long, it had better be good-looking. Working in large-format is exciting because our work really shows up and sticks around for awhile. Bigger IS better.
Speaking of impact, who doesn't need a better slideshow? The secret to great PowerPoint design is to simplify things. We clear the clutter, use great graphics and minimal text. Your audience will thank you – for keeping them awake.