How do you pick names for your Sims?

I have an old baby name book, so sometimes I use that. More often I'll pick a "cool word" and use it as a name, or use an unusual name I heard somewhere. Sometimes I click through the randomizer until it gives me an interesting choice. If I'm having multiple children in a family, I'll pick a theme and look up names that go with my theme. I especially like giving Sims names that I'd never give a real person.