The last-ever penny will be minted today in Philadelphia

It's a complete waste of money and time continuing to mint such low-value currency. It can't be used for just about anything.

Unfortunately, I do see the problem with part of this. For a handful of items where it does matter, it will force people to use cards more if they want to avoid rounding. And the card providers already have a choke-hold on retailers, and the whole thing is basically a scheme that funnels money from the poor to the wealthy via interest and fees on the consumer, interchange fees, and rewards programs.

Back when we did it in Canada, I don't recall a single person I knew concerned about penny rounding. Everyone was sick of pennies. No one cared. Everyone was happy. And the math seems fair enough:

https://www.budget.canada.ca/2012/themes/theme2-info-eng.htm...

Basically, if something is $1.01 or $1.02, you round down. If it's $1.03 or $1.04, you round up. Rounding is to be applied after all taxes are paid, etc.

Of course, there was also central guidance and, well, everyone just followed it. It's called "having a society".

People blathering on about stores fixing the rounding are morons, there's no way to do so if you buy more than one item. No one gets ripped off with the above method. In the end, it just works out.

And really, who cares?! It's a penny.

It's not. Some US states have laws on the books that make it illegal for retailers to round up. The turmoil is that if the retailer can only round down to the nearest five cents, then they stand to lose from one to four cents per cash sale for any sale that is not a multiple of five cents. Add those one to four cent losses up over a large enough number of transactions and the retailer stands to lose a considerable sum over the course of a year. And many retail shops already operate with thin margins anyway, so the loss from "always round down" could erase whatever thin margins some shops already operate under.