This sums up the majority of the package delivery industry today. Package Delivery has existed for many years, even centuries.
Most businesses use some form of package delivery.
Some may have their own delivery service, while others use package delivery companies. The secret to being a successful package delivery company is timeliness, efficiency and affordability. Within the last twenty years, guaranteed two-day and overnight delivery has made the industry billions. Pony express delivered packages for several years, until the telegraph started to render it obsolete. Many think that fax machines and e-mail may do the same to the overnight market, my feeling is that as technology makes advances into most peoples lives, it will damage the package delivery market so weaker will be swallowed, leaving fewer, but more dominant companies.