Just got an 11" Air and I have a question about placement of the charger. I would like to route the power adapter down behind my desk and keep it plugged in to the surge protector all the time, is that safe? That way the magsafe port would be up at my desktop for easy access to plug into whenever I need to charge and wouldn't have to constantly crawl under my desk to plug/unplug the adapter each time. Is it safe to leave the power adapter plugged in to the outlet even when the Air isn't connected to it? (if I'm using it on the couch or something). Do most people set it up like this? Thanks