Mark Dain Tip for anyone who leaves their Mac sleeping rather than shutting it down; when you wake it up, type "sudo killall -HUP powerd"; there's a bug in El Capitan only? where powerd will eat your CPU. I don't know why this happens or why SIGHUP fixes it

Eric Not a problem on my ancient Snow Leopard ;)

Mark Dain Wasn't a problem on Mavericks; the best version of OS X ever. I'd stay on it if Apple would update it; it receives the odd security update but nothing for Safari, for instance