I must be in the minority...cause I take everything I can get...we check two bags a piece and carry on a bag each...I split all of our clothes evenly amongst the bags and split up the dive gear, I want to be prepared in case we lose a bag on the way.
I'm more like you. My wife and I try to cut down every time we go, but we always end up with 4 checked pieces and a couple of carry-ons. We go for two weeks, we dive and we fish, and we bring stuff to friends there. It adds up.