Saying "of course" graciously

Faltaría más

fal-tah-REE-ah mahs — Of course / it's the least I could do

"— ¿Me ayudas con las maletas? — ¡Faltaría más!"
— Can you help me with the bags? — Of course!

Literally "more would be missing" (as in, of course, what kind of question is that) — a warmer, more generous-sounding "of course" than a plain "claro."

"My favorite way to say yes to almost anything anyone asks of me."— Graciela