Balance, Climb, Disguse, Jump and Swim bearly get any use, but every other skill has been used, at least twice.
I have to make an appraise check simply to determing the quality of a sword before I buy it. It's a low DC, and being allowed to swing it around for a few minutes makes it even easier, but the fact that I have to roll to figure out if the blade is masterwork, or perhapse mastercraft.
Decipher Script has been used, a few times, because one of the NPC's we all know and love (grr) has an annoying habit of leaving cryptic clues about when we're looking for him. Sometimes notes. Sometimes, with a decent roll, hints are given about said notes.
When everyone multiclasses heavily, it's often easier to get your Escape Artist up WAY above your grapple bonus, especially with finesse fighters.
Use Rops can be useful, if you're tying up an unconscious prisoner, and you're pretty sure he has no ranks in escape artist, and your dex mod is higher. Take 20 - Useful even without ranks.
- Kemrain the Unfortunately Skilled.