I've got another cheap (maybe free) magazine for you. Right now a one year subscription of House Beautiful is $5 after the $5 off promotion. However, for some reason (I have no idea why) an additional $5 off promotion was applied to my account, making the total $0!
I assume that I recently purchased something that must have triggered the additional discount, but I don't know what it was. Give it a shot with your account too! :)