I feel like pyromancy drops off massively in the late game.
I also feel like I wasted a lot of twinkling titanite on the thorns armor.
Just Artorias DLC left to do now before the endgame, now while I'm all for not having immediate warps in DS games, the sheer amount of walking I've had to do has me thinking they really could've just done a DS2 and put all the bonfires in as warp points, I've done SO MUCH RUNNING (capra's point above also comes to mind, it's a pickle of a place to go back and forth from)
Freakin' Big Hat Logan somehow freed himself from his own cell, I went all the way back with the key and he wasn't there so that led to another long stroll back (since the cell bonfire isn't linked to the rest), at least he redeemed himself by how his sidequest ends.