When I order something and it is being shipped via FedEx I can login to my FedEx account and see the package tracking info. From there I can redirect the package to one of the multiple FedEx / Kinko's retail stores in my area. Then I walk in show my driver's license and can get my package. This is great if the package requires a signature and I won't be home during the day.
UPS has a similar web site and redirection options.