She didn't have a car. Not only didn't she have money to get one, but keeping one running would get pricey for someone who also didn't have a job, especially when that someone was a wizard who kept blowing out any technology dated post-WW II.
"Hey Bill?" She had gotten up from her chair and fidgeted until he turned around. Then she hunched her shoulders up with a meek looking smile. "Thanks for being patient and not smacking me into the dry wall."