When you get a new bag home (really, the leather is what I'm interested in) what do you do to it before you wear it around? Is there something you're supposed to do as a preventative measure to keep the leather in top shape? What do you use? Also, different treatment for legacy leather and other different kinds of leather? Anyone treat their wristlets? I've heard people mention different things, but I'm curious to know what the general consensus is about leather care.