I keep thinking about dying my hair...then I remember that I'm also trying to get a job. Lawyers are terribly boring.
For the most part, I go for casual to very casual. (Jeans, t-shirts, etc.) However, with cause I wear a suit. For example, interviews, going to court, seeing a clinic client, etc. When you're playing lawyer, look like a lawyer. When you're a law student, doesn't matter.