I am finally free of my giant pile of January deadlines! As of today, I get to remember what it's like to not be a giant bundle of screaming stress. Whew.
My inventory contains tinsel, chocolate panties, an avocado sandwich and some other unmentionable things. Czixi's inventory is even more NSFW thanks to last year's birthday present from Drocilla, but a lot of hers is also tided into containers to make it more manageable.
As for things that players give Czixi - I preserve all letters/paintings/other written items eternally, plus the few crafted items that people miraculously got Czixi to like. The vast majority of what she (and her priests) are given is deleted. Otherwise her inventory would be full of macarons. Sometimes I forget to put them in our void of destruction and a few days later am inundated with decay messages, that's always fun.
@Uzriel - Drocilla's covered most of it but the one thing I would add is to SAY TO the NPC multiple times, and at different times of day if you can. Obviously don't overdo it, but the person able to answer your question might be busy/not on a timezone that works for when you ask/just miss it the first time.
Tangent but. So once upon a time Sylandra got hit on by NPC Max Coldsteel of the Gnafia who called her "turkey" and said he was looking for a new Mrs. Coldsteel because the last one was "on ice."
And all I can think now as I read and see the exploits of @Gurashi and Duathielle is, "Man, I missed my opportunity for indulgent Sylandra x Coldsteel fanart, and possibly a star-crossed romance with a gnomish crime syndicate."