"The Kiss Hello" Season 6, Episode 16

Kramer decides to display photos of everyone living in the apartment building in order to make everyone friendlier. But things get too friendly for Jerry when the women of the building insist on him kissing them hello. Jerry opens a can of worms when he finds out uncle Leo was supposed to give $50 to his sister years ago, but neglected to do so. Elaine's chiropractor girlfriend has an outdated hairdo and charges George an appointment fee when he neglects to give 24 hour notice cancellation.