I believe I've heard "Ca a été?" (and maybe "Comment ça a été") in conversation to express "How did it go?". Is that often used? I can also think of "Comment ça s'est passé", but that seems less neutral and versatile than "How did it go". I guess I'm looking for the past tense of "Comment ça va?" (Knowing that "comment c'est allé" would be wrong) Speaking of which, what about "How was your day"? (another sometimes neutral conversation-starter in English). Again, in colloquial French. Anyting besides "Tu as passé une bonne journée" ? Merci beaucoup d'avance.