The last thing...
It means that when you open a window like the inventory window, the skill window, the charm window, the crystal bag window etc... You can close those things, by right-clicking on them anywhere, instead of left-clicking on the little X.
I agree with your first point however. Alot of times I don't have a clue what I got, and even after searching, I'm reasonably sure I didn't get anything. In fact, the only thing I have "aquired" was the holy water. All other quests haven't given me anything as far as I'm concirned.
So telling me what I got would be handy, yes.
Tovi 