Car Hunting

I've been looking around on craigslist to find my sister a car. A beat-up car. Something cheap, yet reliable. Something ugly (since I know for sure she's gonna back it up into some light pole somewhere, sooner or later) and low mileage. I saw some ads that look pretty appealing. Now all the grunt work of contacting the sellers to get more info, test drive, negotiate, etc... *sighs* How come I didn't have an older sister to do all that for me when I needed to buy a car!!!!