That cover seems familiar somehow...

If you don't recognize it, the GCD has the answer for you! From 1990, Uncle Scrooge Adventures #19, "A Stitch in Time" Plot by Patsy Trench, script by Tom Anderson, US script by Geoffrey Blum, art by Daniel Branca. Cover by Don Rosa!

I really wish more people involved in finance or investing read Uncle Scrooge--actually, I just wish more people in general had read it, or maybe learned some of the lessons therein! Sometimes, Scrooge can make a bundle by being thrifty, inventive, and stubborn; and sometimes Scrooge can burn a ton of cash by being thrifty, inventive, and stubborn. You may guess where this one's headed, as Scrooge can't figure out how to unload a ton of silk: the market had changed to rayon and synthetics. Still, a conversation sparks an idea: Scrooge decides to use Gyro Gearloose's time machine, the TADPOLE (Temporal Axis Displacement Projectile and Ozone Layer Enhancer; of course that's a Doctor Who riff!) to go back to the middle ages and unload the silk there. Previously, the TADPOLE had run on smog, which I'm sure had been a problem when travelling to the past, so now Gyro had it converted to electricity; but it would take days to charge and because it would be carrying a load, Scrooge and the boys would only be able to stay in the past for three hours.

The sale hits a snag, since even a princely sum back then was lowballing Scrooge on the deal, so he opts out, which hurts the local king's pride, and the Ducks are chased out by guards. After returning to the present, Scrooge fumes that he should've bought the silk in medieval times and sold it now...so, maybe in 800 years, it would be worth something! Turning it around, he has Gyro recharge the TADPOLE, for a trip into the world of tomorrow, 2389! Where the silk is also not a big hit, but Scrooge's antique watch is, as he sells it for twenty million credits! They also miss the return window, so the TADPOLE returns without them, but so what? Gyro would recharge it and send it back...Except, Scrooge did not appear to take inflation into account, and was probably robbed on the watch deal: a glass of milk was twenty thousand credits, and a cheap hotel room two million for the night! Four million with shower!

Gyro charges the TADPOLE to a minimum for the trip, and finds the Ducks, wrapped in silk; which was all they had left to wear since they'd had to sell their clothes...Huh, does anybody wear proper silk anymore now? I'm not exactly stylish, although I'm remembering a pair of silk boxers I had once. Mmm, comfy! I wonder if I got tired of my butt slipping off chairs, though...

Also this issue: Scrooge tries converting to paper money and a round bin, in "Tricky Experiment," and a Carl Barks one-pager, where Scrooge helps Donald avoid making impulse purchases, with one last one. Shoot, I maybe oughta try that!