What I mean is... I often have Xcode and Eclipse open as I'm working on multiple projects simultaneously, along with Safari for research. Each of them use anywhere from 100-350 MB of RAM, roughly. CPU usage remains at 0-1 if I'm not actively working in them. Is there any benefit to closing the apps before I close my lid? I'd like to just keep everything open, as I love the quickness of just freely opening and closing my computer and instantly everything is there where I left it. But on the other hand, I would also like to get the most out of my stand-by battery life. Anyone have any thoughts or knowledge on this?