Lots of deals on Gift Cards right now. Mostly at restaurants, though I hear that London Drugs has something going right now, too.
On a percentage basis, the best deal I've been able to find is the Old Spaghetti Factory. Buy a $25 gift card and also get a $10 card that you can use between January 1 and March 15th. Both cards are only good at Canadian locations. Keep that in mind if you plan a visit to Hawaii over the next few months; the Honolulu location had (1990s) a great reputation for both price and quality of food, but you can't use the cards there.
40% bonus is fine with me, even if I have to be sure I use the card in the two and a half month window.
Dunno about other locations, but the West Edmonton Mall location has brought back the sourdough bread served free with most (all?) meals. Only thing left that I really miss is the little fruit cubes in the spumoni ice cream.