Cache and Safari

I have to empty cache every time I make a change to my CSS file to view the changes.

Is there a way to turn caching off? I've tried locking /library/chaches/com.Apple.Safari with no success.

A detailed description of how to prevent caching while using Safari would be appreciated.

Thanks
JRod

what about setting a no-cache meta

http://www.i18nguy.com/markup/metatags.html