Here's a fun fact:

Did you know you can set display:block; on things like <title/> elements? Kind of cool, right? If you're super concerned about crazy small request sizes, you could probably save a couple bytes by displaying your <title> instead of an <h1>. Overkill, for sure -- but still sort of interesting.

But another, slightly cooler trick is adding a display:block; white-space: pre; rule for select <script> elements.

This is kind of awesome for times when you want to include a code sample in your page, but you also want that code to actually execute. Sure, you don't get syntax highlighting -- but you do get a couple extra nerd points. And you reduce the weight of your page a bit by not duplicating that code.

The More You Know™