After Tim Hortons offered their $1 lattes for a limited time, McDonalds joins the promotional race by offering $1 off Coffee from February 20th – 26th, 2012. I saw several advertisements around Downtown Vancouver, so it is legit.
It’s applicable to all their different types of coffee like Mochas and Lattes from their McCafe. It’s still a good deal if you are getting their plain black coffee.