|Photo by Colleen Lane|
Unfortunately, with an increasingly interconnected world, many customs procedures are now expedited and overnight delivery companies have made it cheaper and faster to skip couriers. The industry isn't entirely dead, but it's heading that way. Oh, and be wary of companies which make you register and pay a fee to be a courier. Often they're merely reselling bulk airline tickets that you can get better deals on by hitting discounts airlines.
Of course, if Ryanair is ever successful in their plans to bring €10 flights from the US to Europe, being a courier would be a moot point.