Mona!

What product was it that was featured in a series of ads involving a man opening his medicine cabinet and coming face to face with another man, who would then give him advice on health matters? They usually ended with the first man turning away from the cabinet and calling for his wife: "Mona!"

"Open the door and come on in"

Just FYI: Judy Collins' "Song for Judith" is one of the best friendship songs I've ever heard. That song by itself almost puts her at the top of the Collins/Ian/Mitchell/Nyro/Snow clade. (Janis Ian still holds the top spot, but oh, my, I love that song!)