Oooh, thanks.  I'll have to check it out.  Thankfully I have three save files all for myself at the moment (before my brother starts playing).  Of the two "extra" ones, one or both of them are probably early enough so I can see how it was before.
I avoided following a walkthrough for this game, though I did look up a few Poe Souls and Golden Bugs.  Most FAQs were incomplete anyway.  But for all walkthroughs, especially for long games, there should be a section for "One Time Only" or "Limited Time Only" things.  I wouldn't mind playing an adventure game like Zelda or an RPG like FF and looking at that section, even if spoilerish, to be sure I can get and see 100% of everything in a single playthrough if possible, without having to constantly follow the walkthrough to a T.  I screwed myself up in Chono Cross a few times, and there were many cards I missed in FF VIII.  Etc.  I shouldn't have to be unable to get things just because I decided to play a game for myself without chaining myself to a walkthrough.
Anyway, is there any way to change the last scent learned from whatever it is (medicine, I think) back to something else?  I want my last learned scent to be Ilia's.  >_>