Clark loves competition. He always worries when you have a shared monopoly like FedEx and UPS do in the package-delivery business. Shared monopolies usually result in higher prices or a decline in service. Case in point: FedEx and UPS announce their rate increases every December. Now it looks like DHL will step up as a viable competitor and cease being the 98-pound weakling of the industry. That's because DHL is teaming up with Walgreens to launch service centers in 6,500 stores. One of the big problems with DHL -- owned by the German post office -- had been that it was difficult to find a drop spot. Clark recently had to send an overnight package via DHL. He had to pass several FedEX and UPS drop areas and travel to a shady, industrial part of town to get to the DHL facility. But that will all change thanks to the Walgreens deal. In capitalism, it is the third competitor that creates true innovations in price and service. Meanwhile, Clark buys his DHL overnight mailing envelopes at Costco for a low price. Did you know that there are now 50 million Americans (out of our 300 million total population) who are Costco members? That's about 1 in every 5 adults -- even though Costco is only in about 37 states.