The Odd Couple (1970)

S4E15 Cleanliness is Next to Impossible

After his girlfriend labels him a slob, Oscar resolves to embrace cleanliness like Felix. Determined to shed his messy reputation, he sets out to adopt Felix's tidy habits and transform his living space into a model of order. As Oscar navigates this challenge, he encounters humorous obstacles while trying to maintain his new commitment to cleanliness, all while learning more about himself and his relationship along the way.