Clients "fly in" from all over to have their hair cut and colored at Headquarters Hair Studio, according to owner Sue Carucci, who established the salon in Killingworth in 1977. Headquarters has a rare policy for a salon: The work is guaranteed, and if a customer is not satisfied, the price will be reimbursed. This may be the only salon in Connecticut with such a policy. The two stylists have been cutting hair together since 1986. As Carucci says, "We've been together longer than most marriages."