I [link|http://www.junkbusters.com/ht/en/declare.html|declare], it really works ([link|http://www.junkbusters.com/|Junkbusters]).
I've received four telemarketing calls. Since August.
And, incidentally, the bug that seemed to be keeping the letters from generating's been fixed. I schlepped out another 40 after my move. Another thing to avoid -- don't fill out a USPS change of address form. That is the single largest source of mail address updates used by marketers.