The following is not a complete list of products containing caffeine, but it includes many you would find in a typical supermarket.

A billion cubic inches would be a volume comparable to a large commercial building slightly larger than a typical supermarket.

By contrast, at a typical supermarket, private labels account for about 16 percent of the stock.

Instead, it is groceries and related goods like paper products - the staples of the typical supermarket - that dominate the warehouses' sales.

Nabob produces several different blends of coffee which are available in a typical Canadian supermarket.

These are your typical supermarket, and are found either in the centre of, or on the outskirts of smaller towns.

The stores are expensive to build, stock and staff: a typical supermarket costs more than $5 million, but a hypermarket can exceed $50 million.

But with 16,000 food items, it has fewer than the typical supermarket's 25,000.

With most locations set up like a typical supermarket, the chain deals in food items, clothing and assorted household products.

This means that operating costs are a fraction of those at a typical full-price supermarket.