Bridal Showers

I have three bridal showers coming up in the next few weeks. All trying to get married before the fall semester begins. I'm always left in a quandary as to what to get each of the girls! Do you give them Shirley of Hollywood lingerie? Towels? Kitchenware? These days you usually get a little card telling you where the people are registered, so I guess I can go out and deal with the crowds and get them something they need. Or maybe just a gift card to that store so that they can buy something they don't get later. I'm always at a loss for these things!