Here are three of my favorites:
STANLEY: Helen, what would I do with another woman?
HELEN: Beats me.

STANLEY: Helen, one of these days you're gonna make me come after you.
HELEN: God knows I've tried.

HELEN: You promised to take me out tonight so we could have a good time.
STANLEY: How can I think of having a good time when I want to go to bed?
HELEN: You're right, that was foolish of me.

What are yours?

One of my faves:

(Stanley is ranting about something; I can't remember what it was about)....

Helen: "Is that your final word?"
Stanley: "Yes!"
Helen: "Good, then we won't be hearing any more from you!"

Helen-Look Stanley this new dress that I bought!
Stanley-I like it!
Helen-Really!Stanley you really like it!
Stanley-Yes!It's hiding your knees!

On the 6th episode(I believe the 6th) Mrs. Roper made some kind of comment..

Mr Roper: I will get to you later.
Mrs Roper: Promises Promises......

Stanley:Are you kidding?I don't want to catch your flu!
Helen:You never get CLOSE enough..

(Not a Stanley and Helen exchange but an interesting one
between Janet and Helen):
Janet:Congraduations(after Helen tells her it's their anniversary)What are you going to do tonight?
Helen:Watch Baretta followed by Charlie's Angels..(picks up
Tv Guide)THIS is our social calendar!

Helen: How do you like my new perfume, Stanley? It's called Now or Never.
Stanley: Well it's half right.

Helen: Stanley, how would you like to see me coming to bed in this?

Stanley: A golf cart??

Here's another thing on the "Charlie's Angels" & "Baretta" thing

Helen: Stanley, do you know what tonight is? [It's the anniversary]
Stanley: Oh! "Baretta" followed by "Charlie's Angels"!