[links.useful, usa-centric] Opting out of unsolicited mail/phone calls

[wispfox]

psongster posted information on how to opt out of unsolicited mail and phone calls.

I believe that they all only work for 5 years (unfortunately), and when one's identifying information (mailing address/phone number) changes, one has to opt out again. And, there are companies which one has to tell individually, as they don't use any of the services she lists.

But, still useful.