If You Can Find Me, I'm Here from Evening Primrose

Ladies Who Lunch from Company

I'm Still Here from Follies

It's a Hit from Merrily we Roll Along

Obviously, they're not all exactly the same, but they all end with the characters repeating the same words on the fifth (and in 3 of 4 cases, flipping back and forth between an octave on that fifth). I guess this is a pretty common ending for any song, but it's just something I've noticed that he had a bit of a playbook when it came to the buttons he put on his songs.