I've gotten to the point where I usually just allow stuff from the core books, and select material for whatever campaign setting/material we're using.
I'm just sick of the glut of unnecessary and campaign non-specific material flooding the market... Sometimes makes me want to yell "Just role-play a $#*^!(% character for a change, would you?!" when people come to me convinced it's absolutely vital to their character concept to be able to play a FR race with a PrC from Dragon and feats from Swasbuckling Adventures that fits my world about as well as a "Starfighter Ace" PrC from Star Wars...
I'm just sick of the glut of unnecessary and campaign non-specific material flooding the market... Sometimes makes me want to yell "Just role-play a $#*^!(% character for a change, would you?!" when people come to me convinced it's absolutely vital to their character concept to be able to play a FR race with a PrC from Dragon and feats from Swasbuckling Adventures that fits my world about as well as a "Starfighter Ace" PrC from Star Wars...