Zen Coding
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It’s posted two month ago, I am really little outdated, it’s really a time saver for html coding. And the real magic like typing html:4t for the hard to remember html doctype thing, also *n and > to include another elements inside. It is faster and more efficiency than any Snippets or snippet apps you can use.
Good thing is, it is build inside Espresso.
Zen HTML Cheatsheet
http://code.google.com/p/zen-coding/wiki/ZenHTMLElementsEn
Zen CSS Cheatsheet
http://code.google.com/p/zen-coding/wiki/ZenCSSPropertiesEn
