I have one wall whos power has just stopped. All other power plugs and switches are working in the effected bedroom and bathroom. I figure it must be the light switch closest to the breaker box that has gone bad. This wall includes the light/fan switch, one plug and the light switch in the bathroom on the opposite side of the same wall. My breaker box is so badly marked I can not figure which breaker controls this wall so I can safely replace the switch. I guess the best thing to do would be to shut them all off. This house was probably built in the late 60s or 70s. Any advice?