When casting or releasing some spells you get rather generic messages. The ones I am currently thinking of is casting "detect hidden" "detect invis" "spirit sight" which all give the message "Your eyes tingle" (as apposed to detect burried which has "Earthsense flares into your vision" or something) and releasing "armor" and "protection" which both echo "you feel less protected". I don't know how much work it would be to change these messages but something a bit more specific to the spell would make them a little more interesting.
I am thinking something like:
Detect Hidden --> Not even Hidden things are lost to your sight.
Detect Invis --> You can see what is not meant to be seen.
Spirit Sight --> Visions from the River flow into your eyes.
Armor --> You no longer feel someone protecting you. (When cast it gives the message "You feel someone protecting you."
Protection --> You are no longer protected from %n. (When cast it gives the message "You are protected from %n." where %n is good/evil or something for grey aura.
Ideas, suggestions or outright denials from implementors are welcome.