As a matter of fact

The house of Ruthven was a small but ultra-modern limestone affair, between Madison and Fifth; a pocket-edition of the larger mansions of their friends, but with less excuse for the overelaboration since the dimensions were only twenty by a hundred. As a matter of fact its narrow ornate façade presented not a single quiet space the eyes might rest on[…]."

Greedo: Going somewhere, Solo? / Han Solo: Yes, Greedo. As a matter of fact, I was just going to see your boss. Tell Jabba that I've got his money.

R. Jeeves: An interesting theory, sir. Would you care to expatiate upon it? B.W. Wooster: As a matter of fact, no, Jeeves. The thought just occurred to me, as thoughts do. R. Jeeves: Very good, sir.