Except for a very rare few chest, every chest in the game is locked, even the ones underwater, which is annoying because you have to almost drown to open some, and I don't think liquid air potions work, least they never seem to work for me. Anyways, I digree..again.

Point is, while so many chest are universally trapped, there aren't that many doors that are locked, and i've never found a chest that was. Doesn't mean there isn't one somewhere. The last lock I remember picking was in Fathien's place. I haven't encountered a lock since, and I've not need to raise my lock picking past four as a fighter/mage..what a wonderful combo

Wonder why this is? Maybe when I redo the game as a mage/thief, I'll probably get some guild quest that involve picking locks or something, but other then that I can't imagine at this point in the game..now doing the shadow ruins, after that just the black swamp to go..needing a lock pick skill..at least not after fathien, but probably not at all really.