Although I buy the majority of my groceries at Superstore, every two weeks when I do my big grocery shop, I always stop at Giant Tiger first. Because they are a discount retailer, they often have groceries on sale for a lot cheaper than most other grocery stores. For example, I often buy my yogurt there for less than half the price I would pay anywhere else. I also find great deals on rye bread, and certain frozen products. Their eggs are really cheap, too, and their bacon is almost always $2.00 or less for a package.
I like to shop at Giant Tiger because I always find something different. Although they do have a basic product line, they often also have something new each time I shop that is being sold for a really good price. One time they were selling Delissio pizzas for $2 each. Needless to say, I stocked up!