I keep the business cards of a couple of lawyers in my wallet. One I've dealt with on business matters (but certainly isn't on retainer) and one I know socially

I keep the business cards of a couple of lawyers in my wallet. One I've dealt with on business matters (but certainly isn't on retainer) and one I know socially who does criminal defense. As you say, I figure if they can't help me personally, they'll know someone who can.