[BogeyBoy]

Well, I have a couple of thoughts.

Even if mail volume continued to drop it would be difficult to deliver it in three days. If the stats in the paper were right they are loosing about 5% volume a year. Do you really think they could deliver 95% of last year's volume in 50% of the time? Here's what would happen, overtime would skyrocket because it would be like having 3 Mondays a week.

Business customers would have a fit. They count on that cash flow to keep the business operating. (Even if they wanted to have PO Boxes it would be tough, all those letters would have to be handled by someone. Plus I don't think there are anywhere near enough PO Boxes to accommodate every business customer in the US.)

The advertisers would also have a fit. Many of them count on specific delivery days to promote sales, etc.

And the biggest issue, the behind the scenes operations would still have to work 24/7. There wouldn't be enough planes to move the mail between the thousands of locations necessary to get it from point A to point B. And there isn't enough storage area to handle the mail that would have to sit and wait for MWF or TTS to be processed and delivered.

It's a complex operation. I'm still amazed that you can mail something in TV today and it gets to NY by the weekend. (I shouldn't be amazed, I've seen it all from the inside.)