I have recenly had a small shed built in my backyard. I am wondering if I can run power to the shed from an outside outlet. I do not plan to run much at one time. The most I could see running at one time would be circular saw or shp vac and a couple of lights. I would prefer to run a new circuit out of the breaker box outside below the meter, but I do not know haw to shut the power off the box. It appears to be run directly from the meter without a breaker to shut it off. Also, the only other breakers in that box are 220 volt circuts, and all the 110 circuts are inside in a separate breaker box. Please advise