If you really need six day a week delivery, then rent a post office box.
And does every house really need curbside delivery? Walking will do you good. My wife picks up the newspapers and mail for an elderly neighbor who has trouble walking. During the winter, another neighbor and I take turns shoveling her walk. That's what people in decent communities do.
Do this, curb the damn postal union and encourage more partnerships like the USPS has with Staples and the problem is solved.
From the time by great-grandfather was a young father (circa 1880) until I was a young lad (circa 1970), the post office was super efficient. Postage rates ranged from two to six cents during that time. Railroads moved most of the mail. A letter mailed on the east coast would show up at a destination on the west coast in two or three days. Lines at post offices were minimal because your local Piggly Wiggly or whatever had a postal substation to sell stamps and mail pages. In fact, many little burgs didn't even have a separate post office at all because the local general store or hardware store or whatever would compete for the honor of hosting it. The precedent for a solvent postal system is already there.
My mother was born in 1913. She has an very good job as a secretary. Her pay was $15 a week. Two pennies out of the $15 was significant.
If you really need six day a week delivery, then rent a post office box.
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Excellent idea.
I am guessing that most residential postal customers could do with just weekly mail delivery. At our house alone, I would estimate that 2/3 of the items received are junk mail, which goes right into the recycling bin.
I do frequently call catalog senders and tell them to take me off their mailing lists.