I got it in an email, the link they sent was this one:
http://www.cip1.ca/SearchResults.asp?Search=5-OFF
http://www.cip1.ca/SearchResults.asp?Search=10-OFF
http://www.cip1.ca/SearchResults.asp?Search=FIFTEEN-OFF
http://www.cip1.ca/SearchResults.asp?Search=20-OFF
It brings me to the Canadian site, if there is anyone that got this email in the states maybe you can post the US links?
Hopefully you can save some money...
Cheers