This Opinion article is part of a Narcity content series. The views expressed are the author's own and do not necessarily reflect the views of Narcity Media.If you shop at Costco all the time, you probably know that the wholesaler offers bigger items at lower prices.Even though I don't like shopping at the retailer, there are a few products that I'll always buy at Costco rather than at a grocery store.That's especially true with how expensive prices are at grocery stores in Canada now.Despite... Read this story