The Rebbe was once approached by a man who asked him to verify the custom of a man folding up his tallis soon after Shabbos as a blessing for shalom bayis (peace in the home).

Chassidim say that the Rebbe replied: I can't say whether this aids in enhancing peace in the home; however, I am certainly convinced that when a husband rolls up his sleeves and washes the dishes remaining from Shabbos, that is a definite blessing for shalom bayis.

A contemporary story related by a chassid