On Wednesday, the U.S. Treasury Department announced that a redesign of the $10 bill would feature a yet-to-be-determined woman in addition to Alexander Hamilton, who “will remain part of the $10 note,” possibly appearing on a second version of the bill.

A dumb new poll proves that 38% of Americans still believe Ronald Reagan was a "great" president—so great, in fact, that his dyed hair and rouged cheeks should be on American money! Of the last six presidents, Reagan's the clear winner in this hypothetical contest. Maybe because he's the only dead one?

Oh, my God, Canada. I'm trying not to raise my voice right now because I know you're doing your best, but, can't you ever correctly complete one simple task?

Although it takes slightly more of it to buy a hardback book, for many people the Canadian dollar has value. So it's a bit of a problem that some of Canada's money has reportedly started melting in the summer heat.

Canada will say goodbye to the penny this fall. As Finance Minister Jim Flaherty explained, "The penny is a currency without any currency in Canada, and it costs us 1.5 cents to produce a penny."

The Federal Reserve vaults are sitting on $1 billion — that's with a "b" — in unused one-dollar coins, shunned currency that has been piling up since 2007, when a government program made their production compulsory. That number could double by 2016, when the program is scheduled to end.

What better way to commemorate the fact that the Canadian dollar has surpassed the value of the American greenback than to give it the high tech makeover it so, uh, richly deserves?

Above is a chart of the exchange rate, in dollars, of the digital currency Bitcoin. That red arrow shows the price on Wednesday afternoon right after we published a story about Silk Road, a Bitcoin-powered online marketplace where you can easily buy illegal drugs. In the past 48 hours alone, a Bitcoin's worth has jumped from around $9.90 to around $14.

How about putting President Obama on the dollar bill, instead of that old white-haired lady who's there right now? Design firm Dowling Duncan did it for the Dollar ReDe$ign Competition. Want to see their designs for the other denominations?

[Alex Mupondi hangs one dollar notes on a drying line after washing them in Harare, Zimbabwe. Singles last years in Zimbabwe, which recently declared the U.S. dollar legal tender, and need to be laundered, literally. Photo via AP.]

The Federal Reserve is rolling out new $100 bills. Pity. We quite liked the current design: clean, uncluttered, bold, and crisp on the fingertips (or so we hear). Now it looks like a god damn child's crayon scratch pad.

In yet further evidence that our lives are totally ruled by random quirks and irrationalities, even when it comes to money, new research shows that the way we feel about cash depends on bill denomination. Hundred dollar bills are treated as more valuable than five twenties, and so we're much less likely to break a hundred, especially since once we have, we'll apparently spend the money even more indiscriminately than if it had been smaller bills in the first place. It does make sense: As politicians or mafiosos will confirm, once the mustard-colored strip is broken on an inch-thick bundle of Benjamins from one's briefcase, that $10,000 just disappears on goodness knows what!