Only this weekend online and in-store at Guess Canada, you can get an extra 20% off regular priced items, and a 50% discount on sale items!
You have to be a member of the "Guess List" awards program to take advantage of this offer. It's basically a free loyalty card which gathers points as you shop. If you want to use this offer in-store, just sign up for the loyalty card while you are there.
I was testing the process online, I joined the "guess list" once I was logged into my account. Then all the online prices shown on the site were discounted by the appropriate amount.
P.S. Hereis a copy of the email I received about this offer, if you want to see it.
(Ends Sunday 25th April 2010)