"Work study? No, she raised Fred and George..."

Arthur Weasley sighed. He was investigating a store that sold a cursed can opener, a denim-eating dishwasher, and Wartcap powder disguised as detergent in a week. Finally, they caught the culprit. He was taken in, but before he left, Arthur spotted a blue Ford Anglia for sale. A little beat up. Slightly dodgy; the seller looked around a lot. Cash only. One payment.

And the price was exactly how much Muggle currency Arthur had on him! No counting involved!

Of course, he had to fly it home...

"Better not mention tha—oh, hello, Molly, dear!"