DOM
With a form heavy site you want a good strategy to apply focus to the appropriate input box, this is a simple strategy using jQuery.
http://greatwebguy.com/programming/dom/input-focus-with-jquery/
This was a quick solution to select an html submit button and make it the default when a user clicks enter from certain or all input elements on the form using jQuery.
http://greatwebguy.com/programming/dom/default-html-button-submit-on-enter-with-jquery/
A suckerfish style css based menu using the JQuery framework. A little slimmer and a little easier to read than the original suckerfish.
http://greatwebguy.com/programming/dom/suckerfish-dhtml-dropdown-menu-with-jquery/