Steve Souders's web page performance best practices

Steve Souders (Yahoo!) gives a great presentation about web page performance. The 14 best practices are
  1. Make fewer HTTP requests
  2. Use a CDN (Content Delivery Network)
  3. Add an Expires header
  4. Gzip components
  5. Put stylesheets at the top
  6. Move scripts to the bottom
  7. Avoid CSS expressions
  8. Make JHS and CSS external
  9. Reduce DNS lookups
  10. Minify JS
  11. Avoid redirects
  12. Remove duplicate scripts
  13. Configure ETags
  14. Make AJAX cacheable
Many of these seem obvious at a gut level and the presentation gives detail about why at a technical level they are so.