Paying more for something is silly, right? Well, not always. Read on to learn why you might want to give Costco your business ...

Detailed price information for Costco Wholesale (COST-Q) from The Globe and Mail including charting and trades.

Costco also provides a range of over-the-counter health products, from vitamins to hearing aids, all at prices that won't break the bank. And let's not forget the optical department, where you can get ...