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.
Oh, I see. That's a lot less useful since there are only two deliverers in my country that have pick-up locations anywhere within cities.
All the others (especially UPS) are way more oriented towards business customers nationwide, so there are basically no sellers using them for B2C shipping.
The USPS usually has a line of 5-10 people and takes me 30 minutes but I go there about twice a year.
FedEx and UPS are quick for me.