This is the only episode where Ricky says his famous line "Lucy, I'm home!"
When Lucille Ball got her first mink coat (after this episode aired), she loved it so much and was so proud of its status symbol that she, too, wore it all the time, even to bed.
In the original script Ricky made an attempt to get the coat by turning the heat. When she still doesn't take it off he asks her if she isn't burning up to which she replies she was but she took her clothes off an hour before. This was deleted from the script due to censors.
Ricky says that he first told Fred about the leaky faucet, "the day after we moved here, August 6, 1948." (In real life, this date was Lucille Ball's 37th birthday.)
When Ethel asks Lucy when her real anniversary is, Lucy can't remember. But she can remember the following season that it's on the 19th of the month.