USPS mail delivery by bike
Washcycle noticed a Postal Service press release ("Green Mail Delivery Saves Postal Service Millions") mentions that the USPS does deliver mail by bike in a handful of communities.
It turns out that the USPS delivers mail by bike in only three places – Sun City, Arizona, St. Petersburg, Florida, and Miami Beach, Florida.
USPS Mail Delivery Bike, St. Petersburg, Florida. Flickr photo by cobrabyte.
See the entry "Mail Delivery by Bike" from the Utility Cycling blog for more, including the history of mail delivery by bike, a discussion of United Parcel Service using bikes during the holiday season, and experience overseas.