Remove rss feeds

Greets:

Just saw this neat trick on removing rss feeds. I know I've had clients ask for this feature. Not sure if anyone wants to code up a quick plugin and offer it to their clients but I wanted to mention and link to it:

http://www.smashingmagazine.com/2008/12/02/10-useful-rss-hacks-for-wordpress/

It's #10 on the list.