Another small trick to lower idle consumption even further is either using a pouch or flip case for your phone. Obviously once inside the pouch or with a flap closure, the proximity sensor turns off the standby screen clock/notifications and any operator logo you might be using. Might not save you much but obviously it all makes a difference if you're obsessive about getting Idle consumption down. Haven't looked to see if there's an option to simply disable the clock/logo as that wouldn't interest me personally as find them very useful.