Start with your entry page. Be sure to include a huge graphical logo, but absolutely no useful information. Unfortunately modern browsers include a font-sizing feature which negates much of the power of this technique. Low contrast color combinations like yellow on white, or better yet, dark gray on black, have been proven to increase web surfers' aggression levels. Make sure absolutely every page positively requires horizontal scrolling.
Frames can be a powerful technology for making people's blood boil.
Be sure to use them heavily, and don't let users easily break out even when leaving your site. Forms are most interesting when they don't work at all. Unfortunately, it won't waste much of your visitors' time if the form has only a couple of fields. Banners adverts are one of the most under-used technologies on the web. Some sites have only 2 or 3 per page.