Last call for Saturday mail, folks.

The financially struggling U.S. Postal Service says it plans to stop delivering mail on Saturdays, but continue delivering packages six days a week.

In an announcement scheduled for later Wednesday, the service is expected to say the cut, beginning in August, would mean a cost saving of about $2 billion annually.

The move accentuates one of the agency’s strong points — package delivery has increased by 14 percent since 2010. The delivery of letters and other mail has declined with the increasing use of email and other Internet use.

Let’s recall why the USPS is struggling:  because Republicans in Congress forced the agency to pay their retiree health care costs decades down the road up front in 2006, then refused to give them the money to do that.  As a result, the USPS made massive workforce cuts and forced thousands into early retirement, which of course means the USPS has to pay those health care benefits up front, putting them into a death spiral.

A Nyquest success story.