Juanita says: "Well actually, it's kind of like Anita's dress in West Side Story". West Side Story (1957), is a musical with lyrics by Stephen Sondheim. Marc Cherry is such a big fan of Sondheim, that almost every single Desperate Housewives episode title, is either a Sondheim song title, lyric, or musical.
The title of this episode "Always in Control", comes from a lyric in the song "Marry Me a Little", taken from the Stephen Sondheim musical, 'Company' (1970).