I usually get an email with the discount word in it. On the homepage of petmountain.com, you can sign up for email notifications. They dont send out lots of junk or anything. But the one discount was listed on their home page yesterday.
way easyer way then having bs email sent 2 u because maybe 2 out of 50 messages will be a cupon coce go to the bottom of there main page and click on cupons and special offers they list the monthly codes there