Optimizing something other than keywords

It's interesting to me how often people focus on keywords and the <meta name="keywords"> tag. But writing pages for SEO is more effective if you focus on other tags and writing good content. So I was very pleased when I found this article on Design Without Frontiers - Optimise your <title> and <description> meta tags. What's really nice about this article is it describes what to do to optimize these tags with some examples from a hypothetical search.