After being banned from After being banned from Tesco and punched several times in the face by Lily, James sat back in his bedroom, thinking. He didn't think he had ever felt such a horrible combination of melancholy and boredom.
"I recently traded a good amount of Galleons for muggle money," Sirius pointed out. "We could put that to some good use."
The marauders left James' home with $1,000 to spend and returned with loads of wood, nails, a hammer, a rough plan, and absolutely no woodwork experience.
Mr. Potter's yard was never the same again.