Summer tends to be a time for self-centered pursuits--picnics, suntans, and murder mysteries among them. The perfect way to balance out your me-time? Head to your local Red Cross blood center before you hit the beach. They're always a little short on donors this time of year (remember, self-centered pursuits), so they'll be glad to see you. It'll probably take less than 45 minutes. And take it from me: A mystery novel is the perfect distraction.