I have been playing a fun game with some of these companies
over the last three years. Whenever I fill out a form  or reply
card for more information, or even Microsoft new product cards
I have been making small various spelling changes in my name
and street address. (I can vary the street address as the town I
live in is so small we all have boxes in the post office). I have
kept track of many of the different ways and it is amazing who
sells this information and how it moves around. :)

Neil