They probably go to the emh or crusher to handle something like antiperspirants there were few episodes in the different TV series that showed perfumes being used or at least available. Klingons clean themselves its just that they probably wouldn't take bubble baths. But the replicator was used to even make things from the past like Tom Paris' TV set or synthesis of different things the emh needed to help with nano machines from the Borg and his holoemitter . Think of all the different things we could do with a replicator. Essentially you could go outside and get some dirt ans turn that into a holiday feast.