[Note: This hint originally ran on April 9th, but was marked "must be logged in to read." As a result, not many people saw it. I'm republishing it so that everyone has a chance to see it. -rob.]
For those who have used this hint to create Grid-style List View stacks, you might be interested to know that you’ve gained an additional feature that none of the other views have: zooming.
While in a list view stack, press Command-Plus to zoom in, or Command-Minus to zoom out. There are five different sizes available. This feature does not work in any other view, and it doesn't work in List View Stacks that haven't been modified to appear in Grid View style.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20100405190000693