Sears Canada (online) currently has a great deal where you can save an extra $20 off $100 (with coupon code 941612369) or $50 off $200 (with coupon code 941612370) on almost everything on their site. This works on Sears outlet and also already reduced or on sale items. Valid for 3 days only from December 13-15.
Quite a few LEGO sets are already on sale for 20% off such as LEGO Star Wars Sith-Fury Class Interceptor, Duel On Geonosis and Homing Spider Droid. Not bad when combined with the $50 off $200 discount!