Do a search on the web for a remote battery isolator. This connects on the battery post like a manual cut off switch but is supplied with a couple of remote fobs. Now this has several advantages in that you can disconnect the battery thus removing the dreaded flat battery from the high drain associated with mog's when parked up. secondly because of where the battery is located it becomes a dead mans switch for security purposes but the added advantage for you is if you left the lights on by accident when the battery reaches a certain level of drain it automatically switches off to protect your starting current level.