The most recent time I ordered the drink, I discovered just how much caffeine this small, eight-ounce coffee pack contained.

A war is always brewing for your coffee dollars between Starbucks, McDonald's ... We recorded the prices and compared the size and caffeine content of each cup. The results may surprise you.

One factor that can impact caffeine content of drinks is the type of coffee ... while the BBC has contacted Caffè Nero, Greggs and Starbucks for comment.

Here's how Seattle's biggest coffee chain is capitalizing on our need for caffeine. There's a reason why Starbucks always ends up costing us a little more than we expected. We often pass up that ...