USPO: One Day Less Of Mail?

Item: Mail may show up less often after cut: Post office considers five-day delivery /Washington Post.

More Info: Worsening economic conditions and the changing habits of Americans are threatening to do to the U.S. Postal Service what few things can: stop delivery of the mail, at least for a day. In testimony before a Senate subcommittee Wednesday, Postmaster General John “Jack” Potter said the post office may be forced to cut back to five-day delivery for the first time in the agency’s history, citing rising costs and an ongoing decline in mail made worse by the global recession.

Question: Would you be drastically affected if the U.S. Postal Service delivered mail 5 days per week instead of 6?