The last-ever penny will be minted today in Philadelphia

I'd say screw it, get rid of nickles and dimes as well. Quarters can stay, for now.

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.

Nickles are likely to go shortly after. You can do everything you can with nickles with dimes and quarters, nickles have worse economics than pennies, and have had their minting suppressed below the market needs for years. Once pennies leave circulation, the problems with nickles will become urgent and they'll quickly leave.

Dimes are small and cheap to make though, so they'll probably stick around.