She rang the doorbell at the first house she came to, and a man answered the door.
She asked if there were any odd jobs she could do, and he replied, "Well, actually, we need the porch painted-how much do you want?" Julie said she felt $50 was fair. He replied, "OK, the ladders, paint, and other tools you need are in the garage."

When the man closed the door, his wife, who had overheard the conversation asked him, "$50?!? Does she realize that the porch goes all the way around the house?" The man replied, "She must have, she was standing right on it."

About 45 minutes later, the doorbell rings again, and the man is surprised to find Julie there.
She tells him that she's done, and states that she even had enough paint to do two coats.
As the man is reaching into his wallet to pay her, Julie says, "Oh, and by the way, that isn't a Porsche-it's a Ferrari."