You don't need sales calls or junk mail. You have better things to do with your time.
Here's a good page of tips on eliminating unwanted solicitation (linked from Lifehacker among other places).
Today do at least two things:
– call 1-888-5 OPT OUT and get credit agencies to stop selling your information.
- send a
postcard or letter to
Mail Preference Service, Direct Marketing Association, PO Box 643, Carmel, NY 15012-0643
Include your complete name, address, zip code and a request to "activate
the preference service". For up to five years, this will stop mail from
all member organizations that you have not specifically ordered products from.
(This tip might be United States only, but it's possible that Canadians can benefit from these as well).
Discardia 
I just did this last night. I called the number and chose the 5 year option. I think ther was a permanent option as well, but I’m not sure.
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I started doing this a few months ago when I got inudated by all sorts of business credit card offers. I found a website online that had a simple letter to mail back in their pre-paid envelope. Here’s how mine reads:
Hi!
I’ve noticed a sudden uptick in the amount of junk mail I get and am trying to cut back. Could you please remove me from any lists you have and make sure that my name doesn’t get sold to anyone else?
Thanks a bunch!
[my name]
[my address]
I print out a bunch of them on a page and cut them up like little postcards. When I get mail, I just slip them into the reply envelopes. So far, it’s worked well, and I also get that psychic satisfaction that I’m using their money to bother them…
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