I average about $100 every 2 weeks at Costco, their prices leave much to be desired. Which is why most of my grocery money is spent shopping at nofrils, freshco, Loblaws and Shoppers.

Like groceries, non-grocery items at Costco are very overpriced. You get the occassional good deal if you are patient enough to wait for a particular item to get marked down, rather than pay Costco's full price which is more than elsewhere.

People really get fooled by Costco's larger sizes.

With everything you buy, one needs to shop around and do the math.