Increasingly, the Postal Service has been adding 24-hour service to many locations, an effort to be more convenient for consumers and more competitive with the traditional business hours of competing services. While greater automation seems to be an important part of ongoing moves, it is not likely supporters of increasing staffed hours will prevail. In fact, visiting the local post office beyond the business day is likely to get more difficult. With plans afoot to end Saturday mail delivery -- a move endorsed recently by the Obama administration -- it is likely local post offices will find their hours reduced. If, however, more public-private partnerships move forward, deals with convenience stores and other retailers -- similar to the package delivery partnership recently announced by Amazon and 7-11 -- could make around-the-clock service a reality.