Forum member ricefields informs us that Sears.ca currently has many LEGO sets on sale with savings up to 25% off. The best deal appears to be LEGO Ninjago 2507 Fire Temple for $114.99 (reg.$154.99) which works out to be 25% off in savings. Check their LEGO section for more great deals! There is also FREE Shipping until December 20 for all orders to Canada.
From November 14-15, you can also save an additional $5 off $50 when you use coupon code 941612467. (thanks harry99)