Jack breaks a date with his girlfriend to keep one with a new romantic interest.
Janet convinces Mrs. Roper to join her in a nude beach protest.
Roper thinks the candid diary Chrissy is transcribing is her own.
Jack and Chrissy compete in a test of willpower.
Jack, Janet and Chrissy think that Helen is having an affair.
Janet finds Jack in bed with her visiting sister.
A glib guru dazzles Chrissy into following him to his commune.
The girls accuse Jack of wanting Larry's fiancee.
Chrissy plans a business trip with her boss.
The girls blame Jack for a bogus party invitation.
Jack and Janet suspect Chrissy is a kleptomaniac.
Mr. Roper's dirty trick prompts his wife to leave.
Jack fears another roommate will replace him.
Jack falls in love with an older woman.
Roper mistakenly concludes Chrissy is pregnant.
Janet runs into her high-school sweetheart.
Jack's uncle pays the rent with a bad check.
The Ropers invite Jack and the girls to their Christmas party.
Chrissy thinks Mrs. Roper's gift is for her.
Jack and Chrissy agree to take over Janet's babysitting job for a night; to their dismay, they face a crying baby, no TV and a locked liquor cabinet.