One - Embedded Music

You may love Handel, or the Beastie Boys, but will your visitor? What if they're at work and should be counting beans instead of browsing your website? Both Netscape and IE provide tags to embed a sound file into the webpage so it will start playing automatically when the page it loaded.

Don't. Ever. Do. This.

Those same tags contain ways of sending the sound file along with a control button. So if you really think your page needs a soundtrack, at least give the visitor the choice to turn it on.